Anatomical Terminology and Homeostasis & Cell (LECTURE #1) Flashcards
the study of structure and form
Anatomy
the study of the function of body parts and how they work
Physiology
the sum of all the chemical reactions that occur within the body
broken down into 2 groups
Metabolism
when large molecules are broken down into smaller molecules
Catabolism
small molecules come together to form larger molecules
Anabolism
What are the 6 Levels of Organization from smallest to largest?
1. Chemical (atomic or molecular)
#2. Cellular
#3. Tissue
#4. Organ
#5. Organ System
#6. Organism
groups of similar cells that perform common functions
there are 4 main types
Tissues
covers exposed surfaces and lines body cavities
Epithelium Tissue
protects, supports, and binds structures and organs
Connective Tissue
produces movement
Muscle Tissue
conducts nerve impulses for communication
Nervous Tissue
structures composed of 2 or more tissue types (ex. heart, liver, bones, brain)
Organs
consists of related organs with a common function
***there are 11 of these in the human body:
1) Integumentary (skin, hair, nails)
2) Skeletal (bones and joints)
3) Muscular (skeletal, smooth, and cardiac)
4) Nervous (brain, spinal cord, nerves, and sensory organs)
5) Endocrine (hormone producing cells and glands)
6) Cardiovascular (heart, blood, and blood vessels)
7) Lymphatic (lymphatic fluid, lymph nodes, and lymphocytes)
8) Respiratory (airways, trachea, bronchi, and lungs)
9) Digestive (esophagus, stomach, and intestines)
10) Urinary (kidneys, ureters, bladder, and urethra)
11) Reproductive (ovaries, vagina, and uterus in women - testes and penis in men)
Organ System
a collective of organ systems
Organisms
subject stands erect, facing the observer with the head level, the eyes facing forward, feet flat on the floor directed forward, and the arms at their sides with their palms facing forward
Anatomical Position
lying face down
Prone
lying face up
Supine
- above
- top
- toward/closer to the head
ex. the chest is _______ to the pelvis
Superior
- below
- bottom
- away from the head
- closer to the feet
ex. the stomach is _______ to the heart
Inferior
towards the head end
ex. the shoulders are _______ to the feet
Cranial (Cephalic)
towards the rear or tail end
ex. the buttocks are _______ to the head
Caudal
towards the nose or mouth
ex. the frontal lobe of the brain is _______ to the back of the head
Rostral
towards the front - at the belly side of the human body
Anterior (Ventral)
The stomach is __(1)__ to the spinal cord.
The umbilicus is on the __(2)__ side of the body.
(1) = anterior
(2) = ventral
towards the back - at the back side of the human body
Posterior (Dorsal)
The heart is __(1)__ to the sternum.
The spinal cord is on the __(2)__ side of the body.
(1) = posterior
(2) = dorsal
towards the midline
ex. the lungs are _______ to the shoulders
Medial
away from the midline
ex. the arms are _______ to the heart
Lateral
between medial and lateral
Intermediate
on the same side
ex. the right arm is _______ to the right leg
Ipsilateral
on the opposite side
ex. the right arm is _______ to the left leg
Contralateral
- towards the surface of the body
- closer to the outside, external to another structure
ex. the skin is _______ to the biceps brachi
Superficial
- towards the core of the body
- closer to the inside, internal to another structure
ex. the heart is _______ to the rib cage
Deep
closer to the origin of a limb
ex. the elbow is _______ to the hand
Proximal
farther away from the origin of a limb
ex. the wrist is _______ to the elbow
Distal
What are the 4 Anatomical Directional Terms relative to the front (belly side) and the back side of the body?
1. Anterior
#2. Posterior
#3. Ventral
#4. Dorsal
What are the 6 Anatomical Directional Terms relative to the midline or center of the body?
1. Medial
#2. Lateral
#3. Ipsilateral
#4. Contralateral
#5. Deep
#6. Superficial
What are the 5 Anatomical Directional Terms relative to the head or bottom of the body?
1. Superior
#2. Inferior
#3. Cranial (Cephalic)
#4. Caudal
#5. Rostral
What are the 2 Anatomical Directional Terms relative to the attachment of appendage?
1. Proximal
#2. Distal
a vertical plane that divides the body into equal right and left halves
ex. a _______ plane through the head will split it into a left half and a right half (each side containing one eye, one ear, and half of the nose and mouth)
Midsagittal/Median Plane
divides a structure into left and right portions that are NOT equal (parallel to either the left side or right side of the midsagittal plane)
Sagittal/Parasagittal Plane
How many midsagittal planes are there?
How many sagittal planes are there?
Midsagittal = 1
Sagittal = INFINITE
divides the body or organ into superior (top) and inferior (bottom) parts
Transverse/Cross-Sectional/Horizontal Plane