Bio107-ch1lab1 Flashcards
Anatomy
study of body structure
Gross Anatomy
study of structure visible to the naked eye (cadavers)
Microanatomy
study of structures that cannot be seen with the naked eye (need MICROscope)
Microanatomy-Cystology
study of cells
Microanatomy-Histology
study of tissues
Developmental Anatomy
study of changes in the body over time
Comparative Anatomy
comparing the structures of 2 animals
Physiology
study of body function
Organismal Physiology
study of MANY functions in ONE group of organisms
General Physiology
study of ONE function in MANY different groups of organisms
Closed circulatory system means
blood pumps through veins, arteries, etc. continuously and on the inside (unless cut open)
Homeostasis
the body’s mechanisms used to keep the body stable (wave shape)
Negative feedback mechanisms
takes what’s wrong and tries to reverse it
Neg. fdbk mech. examples (4)
- Sweating- to cool body down 2. Vasodilation- blood vessels expand 3. Shivering- to warm body up 4. Vasoconstriction- blood vessels get smaller
Positive feedback mechanisms
speeds up a bad thing to get it over with quicker
Pos. fdbk mech example
birthing contractions- they get worse the closer it is to the baby coming out
Anterior
forward
Posterior
backward
Ventral
front
Dorsal
back (dorsal fin)
Superior
up, above, toward the head
Inferior
down, below, towards the feet
Medial
moving towards the center
Lateral
moving away from the center
Proximal
closer
Distal
farther
Frontal plane
equal FRONT and back half (vertical line)
Sagittal plane
equal right and left half (vertical line)
Transverse plane
equal halves from waist up or down (horizontal line)
Dorsal (back) body cavity contains (2)
- Cranial cavity 2. Vertebral cavity
Cranial cavity contains
brain
Vertebral cavity contains
spinal cord
Ventral (front) cavity contains (3 cavities)
- Thoracic cavity 2. Abdominal cavity 3. Pelvic cavity
Thoracic cavity contains (2 organs)
heart and lungs
Abdominal cavity contains (4 organs)
digestive viscera, stomach, intestines, liver
Pelvic cavity contains (3 organs)
bladder, reproductive organs, rectum
Diaphragm is located between
the thoracic and abdominal cavities
The thoracic cavity is made up of (3 other cavities)
- Superior (UPper one) mediastinum 2. Pericardial cavity 3. Two pleural cavities (look like lungs) on the side of above