HB Muscular

Multiple Choice

Which of the following is NOT a function of muscular tissue in the body?

• Enabling movement of body parts

• Producing blood cells

• Converting chemical energy to mechanical energy

• Shortening or contracting to cause movement

Multiple Select

Which of the following statements correctly describe skeletal muscle tissue?

• It is also called voluntary muscle.

• It comprises the bulk of the heart.

• It has crosswise stripes or striations.

• Its contractions can be voluntarily controlled.

Multiple Choice

What unique feature is found in cardiac muscle tissue but not in skeletal muscle tissue?

• Striations

• Intercalated disks

• Voluntary contractions

• Attachment to bones

Multiple Choice

Where is smooth muscle tissue most likely to be found in the human body?

• Attached to bones

• In the heart

• In the walls of hollow organs

• In the skin

Fill in the Blank

Most skeletal muscles extend from one bone across a joint to another ___.

Multiple Select

Which of the following are included in the skeletal system?

• Bones

• Cartilage

• Ligaments

• Tendons

Multiple Choice

Which part of a skeletal muscle is attached to the bone that remains relatively stationary during movement?

• Origin

• Insertion

• Body

• Tendon

Multiple Choice

What is the main function of tendons in the skeletal muscle system?

• Connect muscles to bones

• Connect bones to bones

• Produce movement

• Store calcium

Fill in the Blank

The protein found in thick myofilaments is ___.

Multiple Choice

Which type of muscle works to oppose the action of a prime mover during movement?

• Antagonist

• Synergist

• Prime mover

• Fixator

Fill in the Blank

Good posture favors best body ___ .

Multiple Choice

Which type of muscle contraction enables us to maintain body position without producing movement of body parts?

• Tonic contraction

• Isotonic contraction

• Isometric contraction

• Tetanic contraction

Multiple Choice

What is the main way the body produces most of the heat required to maintain normal body temperature?

• Contraction of muscle fibers

• Digestion of food

• Sweating

• Respiratory rate

Multiple Choice

Which of the following is an example of a pathological condition in another body organ system that can dramatically affect muscle movement?

• Multiple sclerosis

• Asthma

• Diabetes

• Hypertension

Multiple Choice

What is the primary function of a motor unit?

• To transmit sensory information to the brain

• To stimulate a muscle to contract and produce movement

• To store energy for muscle contraction

• To regulate blood flow to muscles

Open Ended

Explain how repeated muscular contraction can lead to fatigue and what role ATP plays in this process.

Multiple Select

Which of the following statements about muscle stimulus are correct?

• A muscle will contract only if an applied stimulus reaches a certain minimal level of intensity.

• Once stimulated by a threshold stimulus, a muscle fiber will contract partially.

• Different muscle fibers in a muscle are controlled by different motor units having different threshold-stimulus levels.

• The muscle as a whole always responds in an 'all or none' mode to a threshold stimulus.

Multiple Select

Which of the following body systems play essential roles in producing normal muscle movements?

• Respiratory system

• Circulatory system

• Digestive system

• Nervous system

Fill in the Blank

A muscle fiber will contract completely, a response called all or ___.

Multiple Choice

Which type of muscle contraction increases tension within the muscle without producing movement?

• Isotonic contraction

• Concentric contraction

• Isometric contraction

• Eccentric contraction

Multiple Select

Based on the diagrams, which of the following statements are true about isotonic and isometric contractions?

• Isotonic contractions involve changing muscle length while maintaining the same tension.

• Isometric contractions involve changing muscle tension while maintaining the same length.

• Concentric contractions shorten the muscle.

• Eccentric contractions lengthen the muscle.

Multiple Choice

What are the three major types of muscle tissue found in the human body?

• Skeletal, cardiac, and smooth muscle

• Epithelial, connective, and nervous tissue

• Ligament, tendon, and cartilage

• Adipose, bone, and blood