Nokea
Where does fertilization usually occur in the female reproductive system?
- A. Ovary
- B. Vesicular (Graafian) follicle
- C. Uterine (fallopian) tubes
- D. Uterus
Correct Answer: C
Rationale: The correct answer is C, the uterine (fallopian) tubes. This is where fertilization usually occurs as it is the site where the egg and sperm meet. The egg is released from the ovary and travels through the fallopian tube where it can be fertilized by sperm. If fertilization occurs, the resulting embryo will then travel to the uterus for implantation. The other choices are incorrect because fertilization does not typically occur in the ovary (A) or vesicular (Graafian) follicle (B). While the uterus (D) is where the embryo implants and develops into a fetus, fertilization itself does not occur there.
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The mature follicle is also called a _____.
- A. Graafian follicle
- B. granulosa cell
- C. primary follicle
- D. secondary follicle
Correct Answer: A
Rationale: The correct answer is A: Graafian follicle. The mature follicle is called a Graafian follicle because it is the final stage of follicle development before ovulation. It is characterized by a fluid-filled cavity containing the oocyte. The other choices are incorrect because a granulosa cell is a type of cell found in the follicle wall, a primary follicle is an immature follicle, and a secondary follicle is an intermediate stage between the primary and Graafian follicle.
A fracture united in unacceptable alignment is termed as:
- A. Delayed union
- B. Crepitus
- C. Malunion
- D. Nonunion
Correct Answer: C
Rationale: The correct answer is C: Malunion. Malunion refers to a fracture that has healed in an unacceptable alignment. This occurs when the fractured bones do not align properly during the healing process, leading to deformity or functional impairment. Delayed union (A) is when a fracture takes longer than usual to heal. Crepitus (B) is a term used to describe a grating or crackling sound or sensation in a joint. Nonunion (D) is when a fracture fails to heal altogether. Malunion specifically addresses the issue of improper alignment post-fracture healing, making it the most appropriate choice in this scenario.
The crackling sound that is produced from bones rubbing against each other is termed as
- A. Rales
- B. Crepitations
- C. Crackles
- D. Vibration
Correct Answer: B
Rationale: The correct answer is B: Crepitations. Crepitations refer to the crackling sound produced by bones rubbing against each other. Rales (A) are abnormal lung sounds, Crackles (C) are fine crackling sounds heard in the lungs, and Vibration (D) is not a term related to bone sounds. Therefore, B is the correct choice as it specifically describes the bone-related sound mentioned in the question.
The major hormone secreted from granulosa cells is
- A. Progesterone
- B. Estrogen
- C. Testosterone
- D. Aldosterone
Correct Answer: B
Rationale: The correct answer is B: Estrogen. Granulosa cells are located in the ovarian follicles and are responsible for producing estrogen, a key female sex hormone. Estrogen plays a crucial role in the menstrual cycle, pregnancy, and development of secondary sexual characteristics. Progesterone is mainly produced by the corpus luteum, testosterone is primarily produced by the testes in males, and aldosterone is synthesized in the adrenal glands. Granulosa cells do not secrete these hormones, making choices A, C, and D incorrect.
Lower jaw bone is called as
- A. Maxilla
- B. Mandible
- C. Temporal bone
- D. Menton
Correct Answer: B
Rationale: The lower jaw bone is known as the mandible. The mandible is the only movable bone in the skull, forming the lower jaw and holding the lower teeth in place. The maxilla (A) is the upper jaw bone. The temporal bone (C) is a bone that forms part of the skull, but it is not the lower jaw bone. Menton (D) is a landmark on the mandible, not the name of the bone itself. Therefore, the correct answer is B (Mandible) as it is specifically designated as the lower jaw bone.