Quiz 1 Flashcards
Anatomical Position
Forearms in supination (thumbs pointing away from body and palms facing forward) Feet parallel pointing forward.
Why would Anatomical position be important in the study of the human body?
Consistency is Key, It is used at a universal reference.
Superior, Cranial, Rostral
Up towards the head
Inferior
Down towards the feet
Anterior
Towards the front of the body, (the pectoralis major(chest) is anterior to the scapula( shoulder blade))
Posterior
Towards the back of the body (The scapula is posterior to the pectoralis major)
Medial
Closer to the midline
Lateral
Further from the midline
Proximal
Closer to the origin (body)
Distal
Further from the origin (trunk,Body)
Deep
Further from the surface (outside world)
Superficial
Closer to the surface (outside world)
Transverse Section
The body split into a top and bottom half
Frontal Section
The body split into the front half and back half
Sagittal Section
The Body split into left and right halves
What is the relationship between size of field and the objective used to observe the field?
Higher the objective view, the smaller the FOV
What is the estimated size of a RBC?
about 7mm
List the six characteristics of epithelial tissues that distinguishing them from other tissue types.
Cellularity, Avascular, Polarity, Innovation, Regeneration, Support, Special Connection
What part of the body is Simple Squamous Epithelium found?
Lung Alveoli’s
What is the function of Simple Squamous Epithelium?
Filtration and Diffusion
Where is Simple Cuboidal Epithelium Found in the Body?
Kidney Nephrons
What is the function of Simple Cuboidal Epithelium?
Absorption and Secretion
Where is Simple Columnar Epithelium found in the Body?
Intestine
What is function of Simple Columnar Epithelium?
Absorption and Secretion
Where is Pseudostratified Columnar Epithelium found in the body?
Trachea
What is the function of Pseudostratified Columnar Epithelium?
Absorption and secretion
Where is Stratified Squamous Epithelium, non-keratinized found in the body?
Esophagus
What is the function of Stratified Squamous Epithelium, non keratinized?
Protection
What is the function of Stratified Squamous Epithelium, Keratinized?
Protective layer made of Keratin
Where is Stratified Squamous Epithelium, Keratinized found in the body?
Skin
Where is Transitional Epithelium found in the body?
Urinary Bladder
What is the function of Transitional Epithelium?
Non-absorption, Expanding and Contracting
How does transitional epithelium differ from other stratified epithelia?
Transitional Epitheliums size and shape typically are not similar compared to other stratified epithelia being a flat layer.
List the four main classes of connective tissue.
Connective proper, Skeletal, Blood, Cartilage
Where is Loose Areolar C.T. found?
Lamina Propria
What is the function of Loose Areolar C.T.?
Supports the Epithelial Tissue
Where is Adipose C.T. found?
Found around Vital Organs.
What is the function of Adipose C.T.?
Protection
Where is reticular connective tissue located ?
Spleen
What is the function of Reticular C.T.?
Framework
Where is Dense Regular C.T. found?
Tendons
What is the function of Dense Regular C.T.?
Tensile Strength
Where is Dense Irregular C.T. found?
Joint Capsule and Scar Tissue
What is the function of Dense irregular C.T?
Protection and support
Where is Elastic CT found?
Arteries and Lung
Compare and Contrast the stricture and function of dense irregular CT with the structure and function of dense regular CT.
Regular CT is constant and straight while irregular is random pattern, Regular CT function is tensile strength, Irregular CT function is Protection and Support.
What is the function of Elastic CT?
Expand and Recoil.
Where is Hyaline Cartilage found?
Trachea and in between Bone
What is the the Function of hyaline cartilage?
Protection and Impact Absorption
Where is Elastic Cartilage found?
Ears and Epiglottis
What is the function of Elastic Cartilage?
Elasticity
Where is fibro cartilage found?
Meniscus and Spine Disks
What is the function of Fibro cartilage?
Weight and absorbing Impact
Where is Osseous Tissue Found?
Bone Head
What is the function of Osseous Tissue
It is the Structural Unit of Compact Bone
How does the structural organization of CT differ from Epithelial Tissue?
Connective tissue is made of cells and matrix. Epithelial tissue is made of too many cells and has special characteristics
Explain how bone tissue is different from a bone?
Bone tissue is only a tissue. Bone is an organ made of bone tissue.
Where is Skeletal Muscle tissue found?
Organs that attach to and move the skeletons.
What is a striation?
Densely Compacted Myofibril
What is the function of Skeletal Muscle tissue?
Contract and cause movement
What is the function of a striation?
Voluntary Muscle Movement
Define Intercalated Disc?
The junction between 2 cardiac muscle cells
How is cardiac muscle tissue different from skeletal muscle tissue?
Cardiac Muscle tissue has branching and intercalated discs.
How is smooth muscle tissue different from skeletal muscle tissue different from skeletal muscle tissue and how is it different from cardiac muscle tissue?
Skeletal muscle doesn’t branch or have intercalated discs.
Smooth muscle is made of spindle shaped cells.
Cardiac is multiple large cells.
What is the function of Cardiac muscle tissue?
To perform involuntary, coordinated contractions that allow your heart to pump blood through your circulatory system
Where is Smooth muscle found?
Visceral Organs
What is the function of smooth muscle?
Applies pressure to vessels and organs
What is the function of Nervous Tissue?
Carry electrical signals
Why are neuroglia found in nervous tissue
To protect and nourish
In what ways are white matter and gray matter different?
Gray matter is on the inside of white matter because gray matter contains neuron cell nucleus
What is myelin?
It is a sheath that covers an axon.
Why are some neuronal processes myelinated?
Protects the axon if myelinated it carries the electrical impulses better
What is the node of Ranvier
The edge of of the axon, showing the end and beginning of a new axon.
What is the function of the Node of Ranvier?
It is essential for action potential
Where are multipolar neurons found?
Brain and Spinal Cord
What is the function of Multipolar Neurons?
Detect the stimulus in motor or sensory nerves
What is the function of the Spinal Cord?
Carries signals from the brain to the body and vice versa.
Where are Nerves found?
Connected to the Spinal Cord and extend through the body
What is the function of Nerves?
Send electrical signals that help you feel sensations and move your muscles
Define Artery.
Vessel that carries blood away from the heart to an organ or tissue.
Define Vein
Vessel that carries blood to the heart from the lungs.
What is the function of the smooth muscle in the tunica media?
Constriction and Dilation
What is the function of the dense elastic tissue in arteries?
Elasticity for recoil and expansion
Compare the structure of an artery and vein. What about them is different? What is similar?
Veins are flat circular structures, Arteries are tubular circular structures. Both have Tunica Intima, media, and externa
What is the main function of the Epidermis?
Vitamin D absorption
What is the main function of the Hypodermis?
Adipose tissue between dermis and tissue.
What is the main function of the Dermis?
Contains Hair and Nails.
Where is thick skin found?
Palm
Where is thin skin found?
Scalp
What type of muscle tissue is the arrector pili muscle?
Smooth muscle
How does a holocrine gland secrete its product
Sebaceous glad produces sebum through a duct.