Biology - Muscles And Bones Of The Frog & Their Functions

The biceps femoris muscle is located in the thigh and is responsible for extending the thigh and flexing the leg to help with movements like walking and running.

The deltoid muscle is responsible for the abduction of the arm, which means moving the arm away from the body. Flexion, rotation, and adduction are functions of different muscles in the upper extremities.

The external oblique muscle is responsible for compressing the abdomen, helping to stabilize the core and support movements like bending forward or twisting at the waist.

The correct answer describes the primary functions of the gastrocnemius muscle, which is located in the calf area. The incorrect answers describe functions of other muscles in different parts of the body.

The internal oblique muscle is responsible for compressing the abdomen, not expanding the chest, flexing the knee, or rotating the shoulder.

The latissimus dorsi muscle is responsible for extending and rotating the arm at the shoulder joint.

The mandibular bone is also known as the lower jaw bone and its primary function is to allow movement of the lower jaw for actions such as chewing and speaking.

The masseter muscle is one of the muscles of mastication that is responsible for raising the mandible during the process of chewing. It works in conjunction with other facial muscles to facilitate jaw movement.

The mylohyoid muscle is responsible for elevating the floor of the mouth, aiding in the process of breathing.

The pectoralis major muscle is responsible for bringing the shoulder closer to the midline of the body, which is known as shoulder adduction.

The rectus abdominis is a paired muscle that runs vertically on each side of the anterior wall of the human abdomen. Its primary functions are to compress the abdomen and to flex the trunk.

The sartorius muscle is responsible for flexing the thigh at the hip and flexing the leg, allowing for movements such as crossing the legs.

The triceps brachii muscle is responsible for extending the forearm, not flexing, abducting, or rotating it.

The triceps femoris is a muscle that extends the leg and flexes the thigh. It is not involved in bending the leg, rotating the leg, or abducting the thigh.

The extensors of the hand are responsible for extending the hand at the wrist and fingers, allowing for movements like opening the hand.

The extensors of the foot are responsible for extending the foot, not flexing, rotating, or abducting it.

The flexor muscles are primarily responsible for flexing the hand, while extensor, abductor, and adductor muscles have different functions related to movement and stabilization.