Unit 4-Anatomy-Muscular System-Diagram Review

Front

What is the function of the internal oblique muscle?

Back

The internal oblique muscle helps in the rotation and lateral flexion of the trunk, as well as compressing the abdominal cavity.

Front

Where is the biceps brachii located and what is its primary function?

Back

The biceps brachii is located in the upper arm and its primary function is to flex the elbow and supinate the forearm.

Front

What is the role of the brachialis muscle in arm movement?

Back

The brachialis muscle is primarily responsible for flexing the elbow joint.

Front

What is the occipitalis muscle and where is it located?

Back

The occipitalis muscle is located at the back of the head and is responsible for moving the scalp backward.

Front

What is the sarcolemma and its significance in muscle fibers?

Back

The sarcolemma is the cell membrane of a muscle fiber, crucial for maintaining the environment of the muscle cell and facilitating the transmission of action potentials.

Front

What are the main types of muscle tissue in the human body?

Back

The main types of muscle tissue are skeletal muscle, cardiac muscle, and smooth muscle.

Front

How does skeletal muscle differ from smooth muscle?

Back

Skeletal muscle is striated and under voluntary control, while smooth muscle is non-striated and involuntary.

Front

What is the role of tendons in the muscular system?

Back

Tendons connect muscles to bones, allowing for the transfer of force and movement.

Front

What is the significance of the neuromuscular junction?

Back

The neuromuscular junction is the site where a motor neuron communicates with a muscle fiber, essential for muscle contraction.

Front

What is muscle hypertrophy and what causes it?

Back

Muscle hypertrophy is the increase in muscle size due to resistance training and increased workload on the muscles.