18. Intro To Human Body Flashcards

1
Q

Adipose

A

Fibrous Connective Tissue type that serves as storage for surplus food and insulation to conserve body heat.

Provides support and protection for certain structures such as the heart, kidneys, and some joints.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Anatomy

A

Study of body structures and their propositional relationships to one another.

Gross: larger body structures: bones, muscles, organs
Microscopic: Cells, tissues
Applied: body structures and the changes they undergo during the diagnosis and treatment of disease.
Comparative: differences between structures of all life forms
Surface: relationships of structures found on the surface of the body and how they relate to internal structures.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Cytoplasm

A

Gel-like intracellular fluid. (346salvo)

(aka protoplasm). Contains organelles. Where most cellular activities like metabolism and cell division occur.

portioned into :
-cytosol, which is not contained within organelles, and
-endoplasm, which is contained within organelles.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Fibrocartilage

A

An avascular connective tissue that receives nutrients by diffusion. The strongest and most durable of all cartilage types.

In the form of discs they serve as shock absorbers and are found between vertebrae as intervertebral disks and in the knee (meniscus). (p. 354)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Diffusion

A

Movement of molecules from an area of high concentration to an area of low concentration to equalize concentrations.

Molecules simply spread out in a given space across a cell membrane. sped up by heat or stirring. Performed by some respiratory , cardiovascular, and digestive systems. (p347)

ex. lump of sugar dissolving water. How cartilaginous cells receive nutrients. (p354)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Epithelium Tissue

A

Tissue that lines or covers external and internal body structures. (349salvo)

Classification: simple or stratified depending on its number of layers. Squamous, cuboidal, or columnar depending on its shape.
-simple: one cell thick
-stratified: two or more cells thick
-squamous: flat-shaped
-cuboidal: cube-shaped
-columnar: column-shaped
Pseudostratified: appears to have multiple layers, but its a single layer with the nuclei located at different levels (giving the appearance of different levels
Transitional: combines all cell shapes that permits stretching and is found in urinary bladder.

Lines open body cavities such as the digestive, respiratory, urinary, and reproductive tracts; Lines closed body cavities such as the dorsal cavity. Made up of closely packed cells arranged in 1 or more layers. Does not contain blood cells. Regenerates quickly. Bound to underlying tissues by a thin membrane called a basement membrane, which provides some structural support and through which the tissue receives oxygen and nutrients by diffusion from blood capillaries in the underlying tissue.

Functions:
-protection (from mechanical injury, harmful chemicals, invading pathogens, and excessive water loss),
-absorption (gets nutrients and exchange of gases in digestive and respiratory tracts),
-secretion (of hormones, enzymes, mucus, and other lubricating fluids)
-excretion (of wastes like urine and sweat in the urinary system and skin), and
-sensation (mediated by embedded sensory receptors in the skin, tongue, nose, eyes, and ears)

Includes type:
-Endothelium, which covers internal surfaces of blood and lymphatic vessels.
-Glandular epithelium which is found in endocrine and exocrine glands and contains secretory cells.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Proximal

A

Directional term used to describe the location of a particular body structure when the person is standing in the anatomical position meaning nearer to the point of reference, usually toward the trunk of the body (359salvo). Refers only to structures located on the upper and lower extremities

Ex: The hip is proximal to the knee

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Hyaline Cartilage

A

A connective tissue that is an elastic, rubbery, and smooth arranged in a translucent, pearly-blue matrix. (354salvo). The more prevalent of its type and covers the articulating surfaces of bones, connects ribs to the sternum, and found in supportive tissues in the nose, ears, trachea, and smaller respiratory tubes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Mitochondria

A

Cell’s “power plants” because most chemical reactions involved in cellular respiration to produce adenosine triphosphate (ATP) (347).

Oval organelles with 2 membranes. Outer membrane is flat and smooth. Inner is folded into numerous chambers (cristae) which enhances its metabolic properties. Most chemical reactions involved in cellular respiration happen here. Acts like a mini-digestive system and are combined with oxygen and digested maintaining the cell’s energy needs. Muscle cells have more of these and red blood cells have none of these. Sometimes these multiply when energy needs increase.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Interstitial Fluid

A

Fluid found in extra cellular spaces between tissues (349salvo).

Primarily composed of water and contains salts, sugars, fatty acids, amino acids, hormones, and neurotransmitters. Bathes cells and provides a transport medium for nutrients, gases, and wastes. Chemically similar to blood plasma, and lymph, but this fluid is more abundant than plasma or lymph.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Nucleus

A

Cell’s “control center” because it directs most metabolic activities, including growth and reproduction (347salvo). Usually spherical shaped and often the largest organelle. Contains clusters of proteins, DNA, and RNA, which contains chromosomes (genetic code). Surrounded by a porous membrane and contains a smaller inner structure (nucleolus) that helps it synthesize proteins.

All cells have at least 1 of these at some time in their existence. Red blood cells lose their nuclei as they mature. Skeletal muscle cells possesses many nuclei.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Nervous Tissue

A

Tissue located in the brain, spinal chord, and within nerves (355salvo). Nerve cells (neurons) transmit nerve impulses, which provide sensory input and motor output and helps interpret and coordinate bodily functions. Facilitate cognition, memory, and emotional responsiveness.

Poses character is of excitability and conductivity. Secretes chemical messengers (neurotransmitters) which assist impulse conduction.
Composed of nerve cells which have 3 parts:
-cell body: contains nucleus and other organelles
-dendrites: transmits impulses to the cell body
-axon: transmits impulses away from cell body (can have many extensions)(some surrounded by myelin sheath that increases the conduction rate of nerve impulses and prevents impulse leakage to adjacent cells.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Pathology

A

The study of disease (159salvo).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Anatomical Position

A

A position where the body is standing upright and facing forward, the arms are at the sides, palms are facing forward with thumbs to the side, and feet are hip-distance apart with toes pointing forward (359salvo).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Axial Region

A

Describes the region that contains the head, neck, and torso or trunk (361salvo). The upper extremity contains the arms, forearms, and hands and connections to this region via the shoulders. Lower extremities contains the thighs, legs, and feet and connections to this region via the hips.

The following are located in or near the axial region of the body:
-Cephalic: Head
-Cranial: Upper skull
-Temporal: Side of the skull
-Facial: Face
-Frontal: Forehead
-Orbital: Eye; ophthalmic means “pertaining to the eye”
-Zygomatic: Upper cheek
-Nasal: Nose
-Buccal: Check wall within the mouth
-Oral: Mouth
-Otic: Ear; auricular means “pertaining to the ear”
-Mandibular: Lower jaw
-Occipital: Lower back skull
-Cervical: Neck; nuchal means pertaining to the nape or back of the neck
-Thoracic: Chest, area between the neck and diaphragm
-Abdominal: Abdomen; superior region of the abdominopelvic cavity
-Pelvic: Pelvis; inferior region of the abdominopelvic cavity
-Pectoral: Breast area or upper anterior thorax; mammary means “pertaining to the breast”
-Costal: Ribs
-Umbilical: Navel or central abdomen; pertaining to the umbilical chord
-Vertebral: Spinal column
-Sacral: Sacrum of the spinal column
-Coccygeal: Bottom of the spinal column or coccyx area; upper region of the gluteal cleft
-Lumbar: Lower back or loin area between the ribs and hips; flank means “pertaining to the side regions of the lumbar area”
-Gluteal: Buttocks formed by the gluteal muscles.
-Sacroiliac: Between the sacrum and pelvic bones
-Perineal: Between the anus and the genitals.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Costal

A

Ribs (361salvo)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Serous Membranes

A

Membranes that line closed body cavities. Secretes thin, watery serous fluid which lubricates organs within the cavities and serves to reduce friction. This fluid is located between its 2 layers:
1. Parietal: covers the walls of cavities like wallpaper and often adhere to it.
2. Visceral: covers visceral organs located within the body cavity.

Examples: pericardium (surrounds the heart), pleura (surrounds lungs), peritoneum (surrounds organs in the abdominopelvic cavity.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Frontal Plane

A

Plane bisecting the body side-to-side and dividing the body into anterior and posterior sections (359salvo)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Homeostasis

A

The tendency of the body’s internal environment to remain relatively constant with a narrow range of change (341salvo). Primarily regulated by the nervous and endocrine system. The body seeks to stay in relatively stable state of equilibrium.
Example:
-Normal body temp 98.6 achieved by increasing heat production or releasing excess heat
-Immune response
-blood sugar regulation
-heart rate
-respiration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Contralateral

A

Directional term meaning the opposite side of the body (359salvo).

Example: The right foot is contralateral to the left foot.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Popliteal

A

Posterior Knee

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Synovial Membrane

A

Membranes that line cavities or spaces between bones within joints, mainly freely moveable joints such as the shoulder, hip, and knee (358salvo). Secretes a thick, clear fluid (synovium) that provides nutrients and lubrication to joints so that they can move freely without friction.

Also lines flattened saclike structures (bursae) that are found near joints

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Antebrachial

A

Forearm; between the wrist and elbow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Ventral

A

A cavity located on the front side (anterior aspect) of the body. Divided up by the diaphragm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Endocytosis

A

Active transport facilitated by vesicles that involves moving substances inside the cell (348salvo).
Step 1: The cell’s cytoskeleton pulls apart the cell wall and draws inward to form a depression.
Step 2: The torn edges create a semi-circle and surround the targeted molecules.
Step 3: The edges rejoin, trapping the molecules within the sac. The cytoskeleton retracts and pulls the sac containing the molecules inside the cell.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Exocytosis

A

Active transport by vesicles that involves moving substances outside the body (348salvo).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Axillary

A

Armpit (361salvo)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Sacroiliac

A

Located in the Axial Region. Between the Sacrum and pelvic bones (359salvo).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Ipsilateral

A

Homolateral (359salvo). Related to the same side of the body.

Example: The right hand is homolateral/ipsilateral to the right elbow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Gluteal

A

buttocks formed by the gluteal muscles (361salvo)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Cutaneous Membrane

A

Part of the integumentary system and covers external body surfaces and includes the skin. (356salvo). Can be tough as well as supple and contains secretion glands.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Mucous Membrane

A

(Mucosa) Lines open body cavities (357salvo).

Examples: linings of the digestive, respiratory, and urogential tracts. Secretes mucus that coats, lubricates, and protects associated structures.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Meningeal Membrane

A

(Meninges) Lines the spaces within the dorsal cavity (brain and spinal chord). Provides protection. Cerecrospinal fluid fills the spaces between the inner and middle meningeal layers and between middle and outer miningeal layers.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Sagittal Plane

A

(median plane) bisects the body from front back and divides it into the right and left sections. (359salvo). Runs parallel to the left or right of the midsagittal plane.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Midsagittal Plane

A

Runs through the middle of the dividing it into equal right and left halves.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Transverse Plane

A

(horizontal plane) bisects the body horizontally and divides the body into superior and inferior sections.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Up

A

Superior on a transverse plane.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

Down

A

Inferior on a transverse plane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

Left

A

Directional term located to the left of the body or structure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Right

A

Directional term located to the right of the body or structure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

Superior

A

Situated above or toward the head end

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Inferior

A

Situated below or toward the tail end

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

Anterior

A

Located on the front side (ventral) of the structure by the frontal plane.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

Ventral Cavity

A

Located on the front side (anterior) aspect of the body. Divided by the diaphragm into the thoracic cavity and abdominopelvic cavity.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

Posterior

A

Located on the back side (dorsal) of a structure by the frontal plane.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

Medial

A

Oriented toward or near the midline of the body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

Lateral

A

Oriented farther away from the midline of the body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

Distal

A

Located farther from the point of reference, usually away from the trunk of the body. Refers only to structures located on the upper and lower extremities

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

Coronal Plane

A

(Frontal Plane) bisects into anterior and posterior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

Superficial

A

Relative to the outside or external surface of a structure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

Deep

A

Relative to or situated within the body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

Dorsal Cavity

A

Located on the backside(posterior) aspect of the body. Divided into cranial cavity and spinal cavity.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q

Cranial Cavity

A

within the skull and contains the brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
54
Q

Spinal Cavity

A

(vertebral cavity) within the vertebrae of the spinal column and contains the spinal chord.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
55
Q

Thoracic Cavity

A

Part of the ventral cavity that contains the pleural cavities which surround the lungs, and the mediastinum (space between the lungs)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
56
Q

Abdominalpelvic Cavity

A

Part of the ventral cavity that divides into the abdominal cavity that contains the digestive organs, and the pelvic cavity that contains the reproductive and urinary organs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
57
Q

Upper Appendicular Region

A

(Upper Extremity) Includes the following:
Clavicular: Collar bone
Acromial: Top of the shoulder
Scapular: Shoulder blade
Deltoid: Curve of the shoulder formed by the deltoid muscle
Axillary: armpit
Brachial: Arm; between the shoulder and elbow
Antebrachial: Forearm; between the wrist and elbow
Cubital: Elbow
Antecubital: front/bend of the elbow
Carpal: wrist
Palmar: Anterior surface or palm of the hand; pertaining to the hand (volar)
Pollex: Thumb
Digital: Fingers or Toes; pertaining to the fingers or toes (phalangeal)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
58
Q

Femoral

A

Thigh (between the hip and knee) (365salvo)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
59
Q

Lower Appendicular Region

A

(Lower Extremity) Includes the following:
Groin: Area between thigh and abdomen; pertaining to the groin (inguinal)
Pubic: Genital area over the pubic symphysis
Coxal: Hip
Femoral: Thigh; between the hip and knee
Patellar: kneecap
Popliteal: Posterior knee
Crural: Leg; between the knee and ankle
Calf: Posterior leg; pertaining to the calf (sural)
Tarsal: Ankle
Pedal: Foot or feet

60
Q

Cephalic

A

Axial Region - Head

61
Q

Cranial

A

Axial Region - Upper Skull

62
Q

Temporal

A

Axial Region - Side of Skull

63
Q

Mastoid

A

Axial Region - located on the Temporal bone just behind the ear

64
Q

Mastoid

A

Axial Region - located on the Temporal bone just behind the ear

65
Q

Facial

A

Axial Region - Face

66
Q

Frontal

A

Axial Region - Forehead

67
Q

Orbital

A

Axial Region - Eye; (ophthalmic)

68
Q

Sphenoid

A

Axial Region - wasp bone; makes up most of the middle part of the base of the skull and contributes to the floor of the middle cranial fossa of the skull.

69
Q

Zygomatic

A

Axial Region - Upper Cheek

70
Q

Nasal

A

Axial Region - Nose

71
Q

Buccal

A

Axial Region - Cheek wall within mouth

72
Q

Oral

A

Axial Region - Mouth

73
Q

Otic

A

Axial Region - Ear; (auricular)

74
Q

Mandibular

A

Axial Region - Lower Jaw

75
Q

Occipital

A

Axial Region - Lower Back Skull

76
Q

Nuchal

A

Axial Region - Back of the neck

77
Q

Nuchal

A

Axial Region - Back of the neck

78
Q

Thoracic

A

Axial Region - chest; area between neck and diaphragm

79
Q

Mediastinal

A

Axial Region - between the sternum and the spinal column, and between the lungs

80
Q

Pelvic

A

Axial Region - Pelvis; inferior region of the abdominopelvic region

81
Q

Pelvic

A

Axial Region - Pelvis; inferior region of the abdominopelvic region

82
Q

Pectoral

A

Axial Region - Breast area or upper anterior thorax; (mammary)

83
Q

Costal

A

Axial Region - Ribs

84
Q

Umbilical

A

Axial Region - Navel or central abdomen;

85
Q

Vertebral

A

Axial Region - Spinal Column

86
Q

Sacral

A

Axial Region - Sacrum of the spinal cavity

87
Q

Coccygeal

A

Axial Region - Bottom of the Spinal column or coccyx area ; upper region of the gluteal cleft

88
Q

Lumbar

A

Axial Region - Lower back or loin area between the ribs and hips; (flank - side regions of the lumbar areas)

89
Q

Gluteal

A

Axial Region - Buttocks formed by the gluteal muscles

90
Q

Sacroiliac

A

Axial Region - Between the sacrum and the pelvic bones

91
Q

Clavicular

A

Upper Extremity - Collar Bone

92
Q

Clavicular

A

Upper Extremity -

93
Q

Acromial

A

Upper Extremity - Top of Shoulder

94
Q

Scapular

A

Upper Extremity - Shoulder blade

95
Q

Deltoid

A

Upper Extremity - Curve of the shoulder formed by the deltoid muscle

96
Q

Brachial

A

Upper Extremity - arm

97
Q

Cubital

A

Upper Extremity - Elbow

98
Q

Antecubital

A

Upper Extremity - bend of elbow

99
Q

Palmar

A

Upper Extremity - palm; anterior surface of the hand

100
Q

Digital

A

Upper/Lower Extremity - Fingers or Toes; (phalangeal)

101
Q

Digital

A

Upper Extremity - Fingers or Toes; (phalangeal)

102
Q

Groin

A

Lower Extremity - Area between thigh and abdomen; (inguinal)

103
Q

Pubic

A

Lower Extremity - Genital area over the pubic symphysis

104
Q

Coxal

A

Lower Extremity - Hip

105
Q

Femoral

A

Lower Extremity - Thigh

106
Q

Pateller

A

Lower Extremity - Kneecap

107
Q

Popliteal

A

Lower Extremity - behind the knee

108
Q

Crural

A

Lower Extremity - Leg; between knee and ankle

109
Q

Calf

A

Lower Extremity - Posterior Leg; (sural)

110
Q

Tarsal

A

Lower Extremity - Ankle

111
Q

Pedal

A

Lower Extremity - Foot or feet

112
Q

Calcaneal

A

Lower Extremity - Heel

113
Q

Dorsum

A

Lower Extremity - Top of foot

114
Q

Plantar

A

Lower Extremity - Bottom or sole of foot (volar)

115
Q

Hallux

A

Lower Extremity - Great Toe

116
Q

Cortex

A

Outer region of an organ or structure (344salvo)

117
Q

Medulla

A

Inner region of an organ or structure (344salvo)

118
Q

Lumen

A

space with a hallow or tubular structure such as intestines or blood vessels (344 salvo)

119
Q

Cell Membrane

A

(plasma) Membrane that separates the intracellular fluid from the extracellular fluid (345salvo). Semipermeable “gatekeeper”

120
Q

Golgi Body

A

An organelle shaped like a series of separate horizontal membranous sacs stacked on top of each other; “packing and shipping” of a cell. Synthesize protiens and lipids, then pack and store them.

121
Q

Endoplasmic Reticulumn

A

A network of curved sacs arranged in paralell rows from which pieces break off and become parts of other organelles. “roadways”

122
Q

Lysosomes

A

Break down unneeded proteins within a cell. engulf and destroy pathogens by using digestive enzymes. Triggers cellular self-digestion such as the uterus shrinking down

123
Q

Ribosomes

A

small granules of ribonucleic acid (RNA) are the cell’s “protein factories”

124
Q

Cytoskeleton

A

The network of microfilaments and microtubules that provides an internal structure to many cells

125
Q

Microvilli

A

fingerlike extensions of the cytoskeleton on the lining of the lower gastrointestinal tract to help increase its surface area and improve absorption of nutrients

126
Q

Cilia

A

hairlike extensions of the cytoskeleton that link the upper respiratory tract to help sweep mucus toward the throat

127
Q

Flagella

A

Whiplike extensions of the cytoskeleton. solitary. provides cellular locomotion. Ex. Sperm

128
Q

Ectoderm

A

The outermost layer and gives rise to structures of the:
-nervous system (including special senses)
-epidermis

129
Q

Mesoderm

A

Middle layer that gives rise to structures of the:
-muscles
-connective tissue (fascia, tendons, retinaculum, ligaments, cartilage, bone, blood and lymph, lung pleurae, pericardium, peritoneum, urogenital tract)

130
Q

Endoderm

A

Inside layer. Becomes the epithelium that lines the body’s cavities, passages, and internal organs. (349salvo)

131
Q

Muscular Tissue

A

Movement specialist of the body (354salvo).

132
Q

Connective Tissue

A

The most abundant type of tissue that is formed of protein fibers within a matrix. (351salvo)
Functions:
-defends: blood clotting, inflammatory response.
-connects: tissues to each other (muscle to muscle, muscle to bone, bone to bone
-supports: framework for organs, glands, whole body.
-transports: nutrients via blood and waste

Types of Protein Fibers:
-Elastin: flexible and delicate
-Collagen: tough and durable. Most abundant (25%). Directly affects age
-Reticulin: delicate

Types of Tissue:
-Fibrous: ligaments and fascia is somewhere between bone and blood
#Loose:
#Adipose:
#Reticular
#Dense
-Bone: contains fewer fibers in a matrix that is dense, hard, and mineralized.
#compact
#spongy
-Cartilage: contains fewer fibers in a matrix that traps water to form a firm gel.
#Hyaline:
#Fibrocartilage
#Elastic
-Blood: lack of fibers is a liquid matrix except when it clots.
*amounts and types of proteins in various matrix types distinguish different tissue types.

Vascularity: varies. Tendons, ligaments, and cartilage have very low vascularity and directly effects healing. Very slow healing.

133
Q

Fibroblasts

A

Precursor cells in connective tissue that produces all types of protein fibers. Contributes to wound healing and repair.

Types of protein fibers:’
-collagen
-elastin
-reticulin

134
Q

Fibrous Connective Tissue

A

Connective tissue that is known as the packing material of the body.

Functions:
-Supports structures
-Attaches structures together
-Fills spaces between structures
-Keeps structures where they need to be.

Types:
#Loose Fibrous: connects adjacent structures to eachother and permits movement between them. Forms the hypodermics layer (superficial fascia), which attaches skin to underlying tissues and structures.
#Adipose: Serves as storage for food; insulation to conserve body heat; and support and protection for certain structures such as heart and kidneys
#Reticular: Provides framework for bone, bone marrow, lymph nodes, and organs such as liver and spleen
#Dense Regular: Compact strong bundles of fibers arranged in regular parallel rows and can resist pulling forces in 1 or 2 directions. Found in tendons and ligaments.
#Dense Irregular: Compact strong bundles of fibers interwoven into irregular patterns and resists pulling forces in all directions and found in deep fascial sheaths surrounding muscles, dermis, periosteum, outer capsules of some organs.

135
Q

Bone

A

Hardest type of connective tissue that contains collagen and mineral salt crystals (makes up 50% of bone matrix contributing to its firmness). Part of the skeletal system.

Function:
-support
-protection
-muscle attachment sites.
-stores minerals and fats and produces blood cells

Types:
-compact: forms hard outer shell. Strongest forms of bone tissue
-spongy (cancellous bone): thin latticework beams.

136
Q

Osteocytes

A

Mature bone cells that become embedded in collagen and mineral salt crystals.

137
Q

Cartilage

A

Connective Tissue that is strong protective capable of within adding repeated stress. Tough rubbery matrix.
Found in thorax, joints, rigid structures (nose, ears, trachea)

Precursors found in baby bones.

Avascular (lacking blood supply). Nutrients reach cartilage by diffusion. Heals slowly if at all

Types:
-hyaline
-fibrocartilage
-elastic

138
Q

Elastic Cartilage

A

Softest and most pliable of all types of cartilage. Shapes external nose, ears, and larynx (voice box)

139
Q

Muscle Tissue

A

Movement specialist of the body.

Properties:
-excitability
-responds to stimulus: contracts (shortens) and stretch (lengthen)

Types:
-skeletal: (voluntary) attach to bones
-cardiac: (heart) wall
-smooth: (visceral) hallow visceral organs or tubes (digestive tract)

140
Q

Skeletal Muscle Tissue

A

Most abundant types of Muscular tissue attached to bones. Voluntary

Functions:
-movement
-maintain posture
-produce heat

Composed of muscle fibers: long, cylindrical, threadlike. May contain nuclei located peripherally. Contain dark and light bands giving a striped appearance.

141
Q

Cardiac Muscle

A

Muscle tissue located in the heart wall. Cells are mononucleated (but can also be multinucleated), H or Y shaped between intercalated disks that assist nerve impulse transmission to synchronize heart contractions.

142
Q

Smooth Muscle

A

Visceral muscle. Muscle Tissue located in the hallow organs (stomach, bladder, uterus, within tubes). Long, narrow, spindle shaped. Contain 1 nucleus. Smooth appearance but not striated. Involuntary. Created for long, sustained contractions.

143
Q

Inflammation

A

Protective response to damaged tissue.
Purpose: to eliminate pathogens and foreign agents, remove damaged tissues, create an environment that maximizes tissue repair.
Local/Acute inflammation

Characteristics:
-Swelling
-Heat
-A loss of Function
-Redness
-Pain

144
Q

Regeneration

A

-Growth of new functional Tissue
-Fibroblasts stimulate collegian for wound closure
-Granulation (new tissue grows from base upward
-scar tissue occurs from fibrous connective tissue

145
Q

Remodeling

A

New connective tissue replacing epithelium, forming a scar.