Nokea
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.
You may also like to solve these questions
Which of the following is not a bacterial infection?
- A. Chlamydial
- B. Gonorrhea
- C. Herpes
- D. Syphilis
Correct Answer: C
Rationale: The correct answer is C, Herpes. Herpes is a viral infection caused by the herpes simplex virus, not a bacterial infection. Chlamydial (A), Gonorrhea (B), and Syphilis (D) are all bacterial infections caused by specific bacteria. Therefore, Herpes does not fit the category of bacterial infections, making it the correct choice.
During an internal examination of a patient’s anus, the nurse notes that the patient has a hypertonic sphincter. What is the most relevant action for the nurse to take at this time?
- A. Ask the patient about anxiety or pain related to the examination.
- B. Inquire if the patient has had any neurologic injury that causes a hypertonic sphincter.
- C. Refer the patient to the physician for evaluation.
- D. Question the patient about a history of anal trauma.
Correct Answer: A
Rationale: Correct Answer: A
Rationale:
1. Hypertonic sphincter indicates increased muscle tone.
2. Inquiring about anxiety or pain helps assess the patient's comfort level.
3. Anxiety or pain can cause increased muscle tension.
4. Addressing emotional factors can help relax the sphincter for a more comfortable examination.
Summary:
- Option B focuses on neurologic causes, not immediate patient care.
- Option C suggests referral without addressing patient comfort.
- Option D addresses past trauma, not the current situation of hypertonic sphincter.
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.
Which hormone is secreted by the corpus luteum after ovulation?
- A. Progesterone
- B. Relaxin
- C. LH
- D. FSH
Correct Answer: A
Rationale: The correct answer is A: Progesterone. After ovulation, the corpus luteum forms from the ruptured follicle and secretes progesterone to prepare the uterus for implantation. Progesterone helps maintain the endometrial lining for potential pregnancy. Choice B, Relaxin, is secreted by the corpus luteum, but its main function is to soften the cervix and pubic symphysis. Choices C and D, LH and FSH respectively, are pituitary hormones involved in the menstrual cycle regulation, not directly secreted by the corpus luteum.
The function of the epididymis is
- A. Sperm maturation
- B. Produce sperm
- C. Spermatid storage
- D. Provide nutrition to sperm
Correct Answer: A
Rationale: The correct answer is A: Sperm maturation. The epididymis is a coiled tube where sperm undergo maturation, gaining motility and ability to fertilize an egg. It does not produce sperm (incorrect B), but stores sperm for a short period (incorrect C) before ejaculation. It also does not provide nutrition to sperm (incorrect D).