Question 1

Which hormone is produced by the pancreas and is responsible for lowering blood glucose levels? What type of hormone is it based on its effect on target cells?

Accepted Answer

Insulin; protein hormone

Question 2

A patient presents with symptoms of hyperthyroidism. Which hormone is likely elevated, and from which gland is it secreted?

Accepted Answer

Thyroxine (T4); thyroid gland

Question 3

Which structure in the eye is responsible for focusing light onto the retina?

Accepted Answer

Lens

Question 4

Which of the following best describes the function of rods in the retina?

Accepted Answer

Vision in dim light and peripheral vision

Question 5

Which cranial nerve is responsible for transmitting auditory information from the ear to the brain?

Accepted Answer

VIII (Vestibulocochlear nerve)

Question 6

Which hormone stimulates the release of cortisol from the adrenal cortex, and what is its chemical nature?

Accepted Answer

Adrenocorticotropic hormone (ACTH); protein hormone

Question 7

A patient has difficulty maintaining balance when standing still. Which structure in the ear is most likely affected?

Accepted Answer

Saccule and utricle (vestibule)

Question 8

Which hormone is responsible for stimulating uterine contractions during childbirth, and what is its type?

Accepted Answer

Oxytocin; protein hormone

Question 9

Which of the following is the correct order of the auditory ossicles from the tympanic membrane to the oval window?

Accepted Answer

Malleus, incus, stapes

Question 10

A person is unable to move their eye laterally. Which external eye muscle and cranial nerve are most likely damaged?

Accepted Answer

Lateral rectus; abducens nerve (VI)

Question 11

Which hormone increases blood calcium levels by stimulating osteoclast activity, and what is its type?

Accepted Answer

Parathyroid hormone (PTH); protein hormone

Question 12

Which part of the ear is primarily responsible for detecting rotational (dynamic) equilibrium?

Accepted Answer

Semicircular canals

Question 13

Which hormone is secreted by the anterior pituitary and stimulates milk production in the mammary glands?

Accepted Answer

Prolactin

Question 14

A patient with Addison's disease has low levels of which hormone, and what is its chemical classification?

Accepted Answer

Cortisol; steroid hormone

Question 15

Which structure in the eye contains the highest concentration of cones and is responsible for sharp central vision?

Accepted Answer

Fovea centralis

Question 16

Which hormone is responsible for stimulating the development of male secondary sexual characteristics, and what is its type?

Accepted Answer

Testosterone; steroid hormone

Question 17

Which hormone is released in response to dehydration and increases water reabsorption in the kidneys?

Accepted Answer

Antidiuretic hormone (ADH)

Question 18

A patient has difficulty seeing in bright light but can see well in dim light. Which photoreceptor is most likely deficient?

Accepted Answer

Cones

Question 19

Which hormone is secreted by the pineal gland and regulates circadian rhythms?

Accepted Answer

Melatonin

Question 20

Which hormone is responsible for stimulating ovulation in females and testosterone production in males?

Accepted Answer

Luteinizing hormone (LH)

BIO163 Endocrine, Eye, and Ear Worksheet Study Guidance

Study Guide - Practice Questions

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