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Anatomy Mod 6 Test

Anatomy

QuestionAnswer
Several muscles work together to laterally rotate the thigh. What do we call an entire group of muscles that work together? Synergists.
One of the jobs of the flexor digitorum superficialis is to flex the wrist. When working in this fashion, does this muscle form a first-class lever, a second-class lever, or a third-class lever? 2nd-class lever.
Of the muscles which are involved in mastication? Masseter, buccinator, lateral pterygoid, medial pterygoid, temporalis.
Name the “kissing muscle.” Orbicularis oris.
What is the difference between extrinsic hand muscles and intrinsic hand muscles? Extrinsic hand muscle move the hand from outside the hand while intrinsic muscle move the hand from within.
List all of the muscles that are involved in flexing the thigh. List their antagonists. The hamstring muscle group, iliopsoas, sartorius, adductor longus, and gracilis. The quadriceps femoris and adductor magnus
List all of the muscles that are involved in abducting the thigh. List their antagonists. Gluteus maximus, gluteus medius, and gluteus minimus. Adductor longus, adductor magnus, and gracilis.
There are two muscles that flex the forearm. List them. List their antagonist. Biceps brachii and brachioradialis. Triceps brachii.
There are two supinators of the forearm at the elbow. List them. List their two antagonists. Supinator and biceps brachii. Pronator teres and pronator quadratus.
Origin The point at which a muscle's tendon attaches to the more stationary bone.
Insertion The point at which a muscle's tendon attaches to the more moveable bone.
Belly The largest part of the muscle, which actually contains the muscle cells.
Mastication The process of chewing.
Extrinsic hand muscles Muscles in the forearm that create movement in the hands.
Intrinsic hand muscles Muscles in the hand that produce movement in the hand.
Created by: 100006766900221