Human Anatomy Quiz: Muscles and Movements

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What does the sagittal plane divide the body into?

Upper and lower segments

Medial and lateral parts

Anterior and posterior parts

Right and left equal halves (correct)

Which type of muscle is responsible for involuntary movements in the body?

Skeletal muscle

Striated muscle

Cardiac muscle

Smooth muscle (correct)

What type of muscle is primarily involved in the rhythmic contractions of the heart?

Cardiac muscle (correct)

Striated muscle

Skeletal muscle

Smooth muscle

In anatomical position, where are the palms of the hands facing?

Forward Signup and view all the answers

What does flexion refer to in terms of joint movement?

Movement of bending Signup and view all the answers

Which type of muscle is responsible for voluntary movement and makes up about 40% of total body mass?

Skeletal muscle Signup and view all the answers

Which term describes the position when a person is lying face down?

Prone position Signup and view all the answers

What is the term for the muscle that initiates a particular movement?

Prime mover Signup and view all the answers

What type of skeletal muscle fibers are arranged in a fan-like structure and converge from origin to insertion?

Triangular muscle Signup and view all the answers

What does the term 'abduction' refer to in anatomical terms?

Drawing a limb away from the median plane Signup and view all the answers

Which of the following pairs of terms refers to directions closer to the trunk versus farther away?

Proximal and distal Signup and view all the answers

Which of the following correctly describes smooth muscles?

Formed of long spindle-shaped cells and controlled involuntarily Signup and view all the answers

What is the primary function of skeletal muscles?

Enabling voluntary movement Signup and view all the answers

Which skeletal muscle structure is characterized by fibers that slope into one side of a central tendon?

Unipennate Signup and view all the answers

Which of the following describes the action of the antagonist in muscle movement?

Opposes the action of the prime mover Signup and view all the answers

What is the function of the central nuclei in cardiac muscle cells?

Support rhythmic contraction Signup and view all the answers

Human Anatomy Quiz: Muscles and Movements

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