Types of Muscle tissues

Which of the following is NOT a characteristic of Smooth muscle?

• Involuntary control
• Found in internal organs
• Voluntary control
• Striated appearance

What is the structural and functional unit of a skeletal muscle?

• ligament
• tendon
• Sarcomere

• myofibril

Specialized structures found in cardiac muscles

• sarcomeres
• neurons
• intercalated discs
• alveoli

Desmosomes are

• protein complexes
• extracellular matrix
• cell junctions
• membrane-bound organelles

What is the role of gap junctions in cardia muscles?

• They facilitate the exchange of nutrients between adjacent cells in the heart.
• They regulate the contraction and relaxation of cardiac muscles.
• They provide structural support to the heart muscles.
• They allow for direct electrical communication between adjacent cells in the heart.

Functional connection between a motor neuron and a muscle fibre is known as

• neuromuscular junction
• axon potential
• neurotransmitter
• synaptic cleft

Which protein is responsible for the sliding of actin and myosin filaments during muscle contraction?

• tropomyosin
• myosin
• actin
• troponin

How many muscles present in adult human body?

• 600

• 640

• 620

• 630

Smallest muscle in human body present

• biceps muscle
• leg muscle

• hand muscle

• ear muscle

Striated muscles are also called

• skeletal muscles
• voluntary muscles
• smooth muscles
• cardiac muscles