Nokea
The hormone that is released from the testes is ______.
- A. Progesterone
- B. Vasopressin
- C. Testosterone
- D. None of the above
Correct Answer: C
Rationale: The correct answer is C: Testosterone. Testosterone is the primary male sex hormone produced by the testes. It plays a crucial role in the development of male reproductive tissues and secondary sexual characteristics. Progesterone (A) is a female sex hormone produced in the ovaries, not the testes. Vasopressin (B) is a hormone produced by the pituitary gland, not the testes. "None of the above" (D) is incorrect as testosterone is indeed released from the testes.
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Estrogen
- A. Facilitate the growth of ovarian follicles
- B. Cause cystic changes in the vagina
- C. Cause cervical mucous to become more alkanized
- D. Produce ductal proliferation in the breast
Correct Answer: D
Rationale: Estrogen is known to stimulate ductal proliferation in the breast tissue as part of its role in breast development and maintenance. This is crucial for preparing the breast for potential pregnancy and lactation. The other choices are incorrect because estrogen does not directly cause cystic changes in the vagina, alter the pH of cervical mucus to become more alkaline, or specifically facilitate the growth of ovarian follicles. Estrogen plays a role in ovarian follicle development, but its main function in this context is to stimulate the growth and maturation of the follicles, not just facilitate their growth.
Also called the mammary gland, two of these are located at the chest level and produce milk for the newborn baby.
- A. Breast
- B. Ovary
- C. Cervix
- D. zygote
Correct Answer: A
Rationale: The correct answer is A: Breast. The mammary glands, also known as breasts, are located at the chest level and produce milk for the newborn baby. This is a basic anatomical fact.
B: Ovary is incorrect as ovaries are reproductive organs in females that produce eggs, not milk.
C: Cervix is incorrect as it is a part of the female reproductive system that connects the vagina to the uterus, not involved in milk production.
D: Zygote is incorrect as it is the initial cell formed from the fusion of sperm and egg during fertilization, not related to milk production.
Which of the following cells secrete testosterone
- A. spermatocytes
- B. oocytes
- C. anterior pituitary cells
- D. leydig cells
Correct Answer: D
Rationale: Rationale:
1. Leydig cells are located in the testes and are responsible for secreting testosterone.
2. Testosterone is a male sex hormone crucial for the development of male reproductive tissues.
3. Spermatocytes and oocytes are involved in gamete production, not testosterone secretion.
4. Anterior pituitary cells secrete hormones like FSH and LH, not testosterone.
Summary:
Leydig cells secrete testosterone in the testes, making them the correct choice. Spermatocytes, oocytes, and anterior pituitary cells are not involved in testosterone secretion.
The prostate:
- A. is located under the urinary bladder;
- B. is located around the initial segment of the urethra;
- C. is an accessory gland of the male reproductive system;
- D. secretes androgenic hormones;
Correct Answer: C
Rationale: Step-by-step rationale:
1. The prostate is an accessory gland because it produces and secretes fluid that nourishes and protects sperm.
2. It is not located under the urinary bladder (A) but surrounds the initial segment of the urethra (B).
3. The prostate does not secrete androgenic hormones (D); instead, it secretes prostate-specific antigen (PSA) and enzymes.
4. Thus, the correct answer is C because it accurately describes the function of the prostate as an accessory gland of the male reproductive system.
Examples of a ball and socket joint is
- A. Interphalangeal joint
- B. Knee joint
- C. Shoulder joint
- D. Elbow joint
Correct Answer: C
Rationale: The correct answer is C: Shoulder joint. A ball and socket joint allows for multi-directional movement with a wide range of motion. The shoulder joint fits this description as it consists of the ball-shaped head of the humerus bone fitting into the socket of the scapula bone. This anatomical structure allows for movements like flexion, extension, abduction, adduction, and rotation. In contrast, the interphalangeal joint (A) is a hinge joint, the knee joint (B) is a hinge joint, and the elbow joint (D) is a pivot joint, none of which have the same range of motion as a ball and socket joint.