The return of consciousness and reflexes following general anaesthesia is termed

Correct Answer: B

Rationale: Emergence is the phase after general anesthesia where a patient regains consciousness and reflexes. 'Emergence,' is correct, as defined in anesthesiology (e.g., Miller's Anesthesia), marking the transition from unconsciousness to awareness. 'Reduction,' is unrelated to anesthesia phases. 'Maintenance,' is the sustained anesthesia state during surgery. 'Induction,' is the initial unconsciousness onset. Emergence's specific role—restoring normal function post-procedure—distinguishes it, making B the precise answer, reflecting clinical terminology.

Correct Answer: C

Rationale: Systematic sampling requires a sampling interval (e.g., every 5th unit) to select from a list. 'Systematic,' is correct, per sampling theory (e.g., Lohr), ensuring regular selection. 'Simple,' uses pure randomness, no interval. 'Stratified,' divides by groups, not intervals. 'Cluster,' samples groups, not individuals systematically. The interval's role in systematic sampling's methodical approach makes C the precise answer.

Correct Answer: C

Rationale: Foot movements include dorsiflexion (toes up) and inversion (sole inward), unique to its anatomy. 'Dorsiflexion and inversion,' is correct, per kinesiology (e.g., Neumann). 'Elevation and depression,' applies to shoulders. 'Abduction and adduction,' is general. 'Opposition and reposition,' is thumb-specific. Foot-specific terms make C the accurate answer.

Correct Answer: B

Rationale: The spleen, located in the upper left abdomen, is the largest lymphoid organ, filtering blood and mounting immune responses. 'Spleen,' is correct, per anatomy references like Gray's Anatomy, outweighing other lymphoid structures in size and function. 'Thymus,' is smaller, primarily active in T-cell maturation during youth. 'Tonsils,' are minor mucosal lymphoid tissues. 'Lymph nodes,' are numerous but individually small. The spleen's substantial mass (about 150-200g in adults) and dual role in immunity and blood filtration distinguish it, making B the precise answer, reflecting its prominence in the lymphatic system.

Correct Answer: C

Rationale: Spermatogenesis is the full process of sperm formation, from spermatogonia to mature spermatozoa. 'Spermatogenesis,' is correct, per histology texts like Junqueira's Basic Histology, encompassing mitosis, meiosis, and differentiation. 'Oogenesis,' is egg formation. 'Spermiogenesis,' is the final differentiation phase, not the whole process. 'Spermatogonia,' are precursor cells, not the process. Spermatogenesis' comprehensive scope makes C the precise answer, covering all stages.