Question 1

Refer to the first image. The structure indicated by the arrow at the bottom is responsible for which of the following functions?

Accepted Answer

Secretion of hormones such as ADH and oxytocin

Question 2

In the second image, the tissue on the left side of the blue lines is most likely which of the following?

Accepted Answer

Anterior pituitary

Question 3

The structure labeled '25' in the third image is best identified as which of the following?

Accepted Answer

Infundibulum

Question 4

The arrow in the fourth image is pointing to which gland, and what is its primary function?

Accepted Answer

Thyroid gland; regulates metabolism and body heat

Question 5

In the fifth image, the black arrows are pointing to which glands, and what hormone do they secrete?

Accepted Answer

Parathyroid glands; parathyroid hormone (PTH)

Question 6

In the sixth image, the cells forming the boundary of the large circular structures are responsible for producing which hormone?

Accepted Answer

Thyroid hormone (T3/T4)

Question 7

The tissue indicated by the upper arrow in the seventh image is most likely which of the following?

Accepted Answer

Parafollicular cell cluster

Question 8

The arrow in the eighth image is pointing to which structure, and what is its main function?

Accepted Answer

Thyroid gland; produces thyroid hormones

Question 9

The inset in the ninth image shows a structure called a 'Hassall's corpuscle.' In which organ is this found, and what is its function?

Accepted Answer

Thymus; site of T-cell maturation

Question 10

The arrow in the tenth image is pointing to which structure, and what is its endocrine function?

Accepted Answer

Pancreatic islet; secretes insulin and glucagon

Question 11

The tissue indicated by the upper arrow in the eleventh image is most likely which of the following?

Accepted Answer

Pancreatic islet

Question 12

In the twelfth image, the arrow is pointing to which part of the adrenal gland, and what hormone is primarily secreted there?

Accepted Answer

Zona glomerulosa; aldosterone

Question 13

The tissue indicated by the middle arrow in the thirteenth image is most likely which of the following?

Accepted Answer

Thymus cortex

Question 14

The purple arrows in the fourteenth image are pointing to which structure, and what hormone does it secrete?

Accepted Answer

Heart; atrial natriuretic peptide (ANP)

Question 15

The arrow in the fifteenth image is pointing to which structure, and what is its function?

Accepted Answer

Testis; sperm production

Question 16

The arrow in the sixteenth image is pointing to which structure, and what is its main function?

Accepted Answer

Ovary; produces eggs and hormones

Question 17

The histological section in the seventeenth image shows which process occurring in the testis?

Accepted Answer

Spermatogenesis

Question 18

The histological section in the eighteenth image shows which stage of follicular development?

Accepted Answer

Tertiary (Graafian) follicle

Question 19

The blue arrows in the nineteenth image are pointing to which structure, and what is its function?

Accepted Answer

Scrotum; regulates temperature of testes

Question 20

The arrow in the twentieth image is pointing to which layer, and what is its function?

Accepted Answer

Tunica vaginalis; protects testis from friction

Endocrine and Reproductive Systems: Structure and Function Study Guide

Study Guide - Practice Questions