Question 1

Which of the following structures is located in front of the rectum and produces about 30-35% of seminal fluid in the ejaculated semen?

Accepted Answer

The prostate gland is located in front of the rectum and produces about 30-35% of the seminal fluid in the ejaculated semen.

Question 2

The two columns of erectile tissue which run along the front surface of the penis are called the

Accepted Answer

The corpora cavernosa are two columns of erectile tissue located along the front surface of the penis, responsible for its rigidity during erection.

Question 3

David is swimming in a cold swimming pool.His scrotum is likely to be

Accepted Answer

When exposed to cold water, the scrotum tends to retract and become wrinkled and shrunken in appearance. This is a natural reflex to conserve heat and maintain optimal temperature for sperm production.

Question 4

Jaden gets picked on at high school because of a physiological condition in which he has developed abnormal breast size.Which of the following is most likely the reason that has triggered his bodily condition?

Accepted Answer

Abnormal breast size in men is often caused by an imbalance between testosterone and estrogen hormones. If a man's estrogen levels become too high or his testosterone levels drop too low (relative to estrogen), it can lead to the development of breast tissue.

Question 5

The generic and inclusive term for the male hormone is

Accepted Answer

The term for the male hormone is androgen, which includes testosterone and other related hormones. Estrogen is the female hormone, GnRH is the hormone that stimulates the pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH), and hCG is a hormone produced during pregnancy.

Question 6

Ken and Marie,who have parented two kids,decide not to have any more children.Ken decides to undergo a surgery where he is told that the tube which transports sperm from the testes to the urethra will be clipped.Which of the following surgeries will Ken most likely undergo?

Accepted Answer

A vasectomy is a surgical procedure that involves cutting or blocking the vas deferens, the tubes that carry sperm from the testicles to the urethra. This blocks sperm from reaching the semen that is ejaculated from the penis during ejaculation. This is a permanent form of birth control and is considered a safe and effective method for men who do not want to have any more children. Mastectomy is the surgical removal of one or both breasts, hysterectomy is the surgical removal of the uterus, and orchiectomy is the surgical removal of one or both testicles, none of which would be appropriate for Ken's situation.

Question 7

It is believed that the purpose of the secretions of the Cowper's glands is to

Accepted Answer

The Cowper's glands secrete an alkaline fluid that helps neutralize the acidic environment of the urethra, which can help protect the sperm as they travel through the male reproductive system.

Question 8

The thick,clear fluid that often appears on the tip of the penis before ejaculation is produced by the

Accepted Answer

The thick, clear fluid produced before ejaculation is known as pre-ejaculate or pre-cum. It is produced by the Cowper's glands, also called the bulbourethral glands, which are located at the base of the penis.

Question 9

Which of the following is normally cut during sterilization in men?

Accepted Answer

Sterilization in men typically involves a procedure called a vasectomy, in which the vas deferens, the tube that carries sperm from the testes to the urethra, is cut and/or sealed. This prevents sperm from entering the semen that is ejaculated during sexual activity, resulting in permanent contraception. The epididymis, prepuce, and scrotum are not typically involved in this procedure.

Question 10

Which of the following is NOT a reason for erection of the penis?

Accepted Answer

Hypersensitivity is not a reason for erection of the penis. Erections can occur due to various reasons such as feelings of anxiety, REM periods (when dreaming occurs), and sexual arousal.

Question 11

The bulbourethral glands are also known as

Accepted Answer

The bulbourethral glands are also known as Cowper's glands.

Question 12

Which of the following refers to gynecomastia?

Accepted Answer

Gynecomastia specifically refers to the swelling or enlargement of the male breast, often caused by an imbalance in hormones. The other choices (B, C, and D) refer to different conditions or actions unrelated to gynecomastia.

Question 13

Sixty percent of semen is made up of fluid from the

Accepted Answer

Semen is made up of fluid from several glands, including the seminal vesicles, which contribute about 60% of the total volume. The prostate gland also contributes to semen production, but only about 20-30%, making option A partially correct. The clitoris is not involved in semen production, and neither is the scrotum, making options B and C incorrect.

Question 14

Which of the following is NOT an internal structure?

Accepted Answer

The scrotum is not an internal structure, it is an external structure that houses the testes.

Question 15

Which of the following muscles in the scrotum causes the testes to elevate?

Accepted Answer

The cremaster muscle is responsible for elevating the testes. The buccinator muscle is located in the cheek and helps with chewing, the dartos muscle is located in the scrotum and helps with regulation of temperature, and the risorius muscle is located in the face and helps with smiling.

Question 16

Which of these can cause the scrotal skin to wrinkle and pull the testicles closer to the body?

Accepted Answer

Cold temperatures cause the scrotal skin to wrinkle and pull the testicles closer to the body to maintain optimal temperature for sperm production.

Question 17

Spermatogenesis takes place in the

Accepted Answer

Spermatogenesis, the process of sperm cell production, takes place within the seminiferous tubules of the testes. The scrotum and vas deferens are involved in the transport and storage of sperm, while the crura are part of the erectile tissue of the penis.

Question 18

The scrotum is

Accepted Answer

The scrotum is the pouch that holds the testicles.

Question 19

Which of the following statements about penis size is accurate?

Accepted Answer

Heredity is the primary determinant of penis size, as genetic factors play a significant role in determining the size of an individual's penis.

Question 20

Oral stimulation of the anus is colloquially referred to as

Accepted Answer

Rimming is the only term in the options that specifically refers to oral stimulation of the anus. Fisting is a term used to describe the insertion of an entire hand into the vagina or anus, while fellatio and cunnilingus refer to oral sex acts performed on the penis and vulva/clitoris, respectively.

Quiz 4: Male Sexual Anatomy, Physiology, and Response