Which two hormones are released by the adrenal medulla during a fight or flight response?
Insulin and glucagon
Dehydroepiandrosterone and estradiol
Ghrelin and kisspeptin
Epinephrine and norepinephrine
The Correct Answer is D
a. Insulin and glucagon: These hormones are produced by the pancreas and regulate blood glucose levels, not involved in the fight or flight response.
b. Dehydroepiandrosterone and estradiol: These are adrenal and gonadal hormones involved in sexual function and other roles, but not in the immediate stress response.
c. Ghrelin and kisspeptin: Ghrelin is involved in hunger signaling, and kisspeptin in reproductive hormone signaling, neither are involved in the stress response.
d. Epinephrine and norepinephrine: These are the primary hormones released by the adrenal medulla in response to stress, preparing the body for a fight or flight response by increasing heart rate, blood pressure, and blood glucose levels.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
a. Cartilage: Cartilage is a type of connective tissue found at the ends of bones in joints. It provides a smooth, elastic surface that cushions the bones and reduces friction during movement.
b. Tendon: Tendons are tough, fibrous bands that connect muscles to bones. They do not reduce friction at joints.
c. Fibrillin: Fibrillin is a protein component of connective tissue, but it's not a specific structure like cartilage and doesn't directly reduce friction in joints.
d. Osteocytes: Osteocytes are mature bone cells. They are not located at joints and don't play a role in friction reduction.
Correct Answer is B
Explanation
a: Decreased osmotic pressure - Decreased osmotic pressure would lead to fluid retention within the capillaries, not lymph production.
b. Increased hydrostatic pressure: Lymph is produced when there is an increase in hydrostatic pressure within the capillaries, which forces fluid and solutes out into the interstitial space, forming lymph.
c: Decreased hydrostatic pressure - Decreased hydrostatic pressure would result in decreased filtration of fluid from the capillaries, hindering lymph production.
d: Increased osmotic pressure - Increased osmotic pressure would draw fluid back into the capillaries, opposing lymph formation.
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