Which of the following muscles is NOT part of the hamstring group?

Correct Answer: B

Rationale: Hamstrings biceps femoris, semimembranosus, semitendinosus flex the knee and extend the hip, on the posterior thigh. Rectus femoris, an anterior quadriceps, extends the knee. Biceps brachii flexes the elbow, an arm muscle. Semimembranosus and semitendinosus are hamstrings. Rectus femoris' quadriceps role excludes it, distinct from arm or hamstring functions.

Correct Answer: D

Rationale: Superficial back muscles, like trapezius (shoulder elevation), latissimus dorsi (arm adduction), and rhomboid major/minor (scapula retraction), lie under skin, moving the shoulder girdle. Vastus lateralis, a quadriceps component, is on the anterior thigh, extending the knee, not the back. Rhomboid minor, replaced here, is superficial with major, but vastus lateralis' thigh location excludes it. Its leg-focused action contrasts with back muscles' upper body roles, distinguishing it in musculoskeletal grouping.

Correct Answer: C

Rationale: Athletes should consume 1.2-1.7 g protein per kg bodyweight daily, per sports nutrition guidelines (e.g., ACSM), balancing muscle repair, synthesis, and adaptation for training demands (endurance or strength). Below 0.8 g, the sedentary minimum, risks deficiency, impairing recovery. 0.8-1.2 g suits non-athletes or light activity, insufficient for athletic stress. Over 2.0 g, common in bodybuilding, exceeds needs for most, with excess metabolized, not enhancing performance. The 1.2-1.7 g range optimizes nitrogen balance and recovery, distinguishing it as ideal, tailored to athletic workloads unlike lower or excessive intakes.

Correct Answer: D

Rationale: Extensor minimus longus is nonsensical no such muscle exists. Extensor digitorum extends fingers, gluteus minimus abducts the hip, and biceps femoris flexes the knee all real, anatomically named for action, location, or shape. 'Extensor' implies extension, 'minimus' small size, 'longus' length, but no muscle combines these as 'extensor minimus longus' it's likely a mix-up (e.g., extensor digitorum longus exists). This fabricated name lacks a corresponding structure, distinguishing it from valid, functional terms.

Correct Answer: B

Rationale: Wrist flexors (e.g., flexor carpi radialis) originate from the medial epicondyle of the humerus, a bony prominence anchoring forearm flexors. Lateral epicondyle hosts extensors (e.g., extensor carpi). Carpals are distal, not origins. Deltoid tuberosity relates to deltoid, not wrist. Medial epicondyle's role distinguishes it, key for wrist flexion leverage.