CHAPTERS 1-4 QUESTIONS &
UPDATED ANSWERS RATED 100%
CORRECT
Anatomy definition - Correct Answer ✔✔ studies the structure of body parts and their
relationships to one another
Physiology definition - Correct Answer ✔✔ concerns the function of the body, how the
body parts work and carry out their life sustaining activities
positive feedback mechanism - Correct Answer ✔✔ result or response enhances the
original stimulus so that the response is accelerated. moves in the same direction as the
initial change.
usually control infrequent events that do not require continuous adjustments. +feedback
mechanisms are often referred to as cascades.
examples: blood clotting, birth
negative feedback mechanism - Correct Answer ✔✔ causes the variable to change in
the opposite direction to that of the initial change, returning it to its "ideal" value
the endocrine system is important in maintaining homeostasis. a good example of a
hormonal negative feedback mechanism is the control of blood sugar by insulin. As
blood sugar rises, receptors sense the change and the pancreas (control center)
secretes insulin into the blood
goal of neg. feedback system: prevent severe changes within the body
examples: heart rate, blood pressure, rate and depth of breathing, blood levels of
Oxygen, carbon dioxide and minerals
regional terms - Correct Answer ✔✔ must know: refer to other quizlet: Regional Terms
Anatomy
anatomical positon - Correct Answer ✔✔ body is erect with feet slightly apart, films face
forward and thumbs point away
directional terms - Correct Answer ✔✔ help us explain where one body part is in
relation to another
, ex: eyes are medial to the ears
head is superior to the abdomen
axial - Correct Answer ✔✔ head neck and trunk
appendicular - Correct Answer ✔✔ all limbs
sagittal plane - Correct Answer ✔✔ divides body into right or left parts
frontal plane - Correct Answer ✔✔ divides the anterior from the posterior
transverse - Correct Answer ✔✔ divides the superior from the inferior
dorsal body cavity - Correct Answer ✔✔ contains cranial & vertebral cavities
protects the fragile nervous system
what does the cranial, vertebral cavity contain - Correct Answer ✔✔ brain, spinal cord
ventral body cavity - Correct Answer ✔✔ contains the thoracic and abdominopelvic
cavity - divided by the diaphragm
houses internal organs called the visceral organs
thoracic cavity - Correct Answer ✔✔ contains heart and lungs; the pleural cavity
envelops a lung and the pericardial cavity encloses the heart (and also surrounds the
remaining thoracic organs: esophagus, trachea, etc)
abdominopelvic - Correct Answer ✔✔ contains the abdominal and pelvic cavity
abdominal cavity contains the stomach, intestines, spleen, liver etc
pelvic cavity contains the urinary bladder, some reproductive organs and the rectum
walls of the ventral body cavity are covered by ________
the part of the membrane lining the walls is _________` - Correct Answer ✔✔ thin,
double layered membrane called the serous membrane
parietal serosa
what are the serous membranes separated by - Correct Answer ✔✔ thin layer of
lubricating fluid called serous fluid -allows the organs to slide without friction
membranes and where they are associated - Correct Answer ✔✔ parietal/visceral
pericardium - heart
parietal/visceral pleurae - lungs
parietal peritoneum - abdominopelvic cavity