NEET PG DENTAL EXAM

HEAD NECK

SCALP FACE TEMPLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The muscle that turns the hand inward so the palm faces downward are the ____
A
pronators
B
supinators
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -The pronator quadratus muscle is found in the forearm just below the wrist. It has two heads, arising from the ulna and inserting onto the radius. With the pronator teres, the pronator quadratus allows us to twist our forearm into the palm-down position (pronation).

Detailed explanation-2: -Function. As its name suggests, the main action of pronator teres is the pronation of the forearm, which is an exclusive upper limb movement. The muscle pulls the radius medially, causing its head to rotate around the proximal part of ulna at the proximal radioulnar joint.

Detailed explanation-3: -Pronation-A rotation of the forearm that moves the palm from an anterior-facing position to a posterior-facing position, or palm facing down.

There is 1 question to complete.