Exam 9

Question 1

someone underweight and always cold, what would be the most likely determination?

Answer 1

has lower than normal level of TSH—
as thyroid endocrines doing negative feedback on the anterior pituitary gland–
has sufficient iodine present—-
has an autoimmune disease called Graves disease

Question 2

in the heart APs travel through ___ to another cell and ___ holds the two cells together

Answer 2

intercalated discs–

desmosomes

Question 3

what is the correct statement about the process if cardiac muscles contractions?

Answer 3

contraction occurs due to the spread of APs through gap junctions

Question 4

Rickets is a disease caused by the lack of calcium and often results in a bowing of the legs. this disease has recently been on the rise bc of ____ sunscreen usage causing ____ to not be synthesized

Answer 4

increase usage of sunscreen

causing Vitamin D to not be synthesized

Question 5

the ____ is the smallest chamber of the heart bc this chamber needs to move blood ____

Answer 5

right atrium—

moves blood the shortest distance

Question 6

what will positively impact human height growth when released

Answer 6

insulin

Question 7

APs moving within the ____ through the ____ will not spread to the surrounding ventricular tissue

Answer 7

bundle of his—-

interventricular septum

Question 8

the adrenal cortex ____ stress by increasing the production of enzymes in the ___

Answer 8

decreases stress

in the liver

Question 9

the increase presence of which endocrines will lead to a decrease in bone strength?

Answer 9

cortisol and PTH

Question 10

to ___ heart rate our body must _____ sympathetic actions at the ____ node

Answer 10

increase —
increase—
SA

Question 11

the release of ___ causes an increase in glucose utilization and is produced by a gland near the ____

Answer 11

cortisol—-

kidney

Question 12

grandma breaks arm after barely bumping arm on a fall, why

Answer 12

she may not have sufficient receptors on her parathyroid gland and she may need to begin a regular weight lifting schedule

Question 13

Carmen did the mirror lake jump due to a illness she has low plasma calcium levels to impact this level her body could what

Answer 13

secrete PTH to increase bone reabsorption —

increase the impacts of the kidney and liver on vitamin D

Question 14

venom that shuts down the heart, what is the correct statement on how the venom works

Answer 14

causes tight junctions to form in the myocardium

Question 15

what could be the reason a person is short

Answer 15

sex endocrines were released too early in life—
she had high SS levels during early development-
she lived in a very stressful environment as a child

Question 16

the positive feedback mechanism that allows your heart to contract requires what?

Answer 16

V gated channels—
ligand gated channels—
extracellular ligands

Question 17

why would you mom be cold and very tired all the time

Answer 17

her iodine levels are too low and she has a autoimmune disease

Question 18

One of your GTAs had her thyroid and all the glandular material near her voice box removed. When warned of possible side effects of the surgery, statements included could be what?

Answer 18

reduction in her ability to absorb calcium from diet–

a decrease in muscular development when working out