Anatomy: Muscular System Functions

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What is one of the primary functions of the muscular system?

Filtering of blood
Regulation of body temperature
Production of hormones
Maintenance of posture (correct)

Which of the following is NOT a function of the muscular system?

Heart beat
Blood filtration (correct)
Respiration
Peristalsis of intestinal tract

What is the term for the production of body heat?

Insulation
Thermoregulation
Homeostasis
Thermogenesis (correct)

Which muscle contractions are involved in respiration?

Diaphragm and intercostal contractions (B) Signup and view all the answers

What is the term for the constriction of blood vessels?

Vasoconstriction (D) Signup and view all the answers

What percentage of body weight does skeletal muscle make up?

40% (D) Signup and view all the answers

What type of muscle is responsible for propelling urine?

Smooth muscle (D) Signup and view all the answers

What type of neurons control skeletal muscle?

Somatic motor neurons (A) Signup and view all the answers

What is the main function of cardiac muscle?

Moving blood through the body (A) Signup and view all the answers

What type of muscle is autochhythmic?

Cardiac muscle (C) Signup and view all the answers

What is the ability of a muscle to respond to a stimulus?

Excitability (C) Signup and view all the answers

What is the ability of a muscle to shorten and generate pulling force?

Contractility (A) Signup and view all the answers

What is the ability of a muscle to recoil to its original resting length after being stretched?

Elasticity (D) Signup and view all the answers

What is the ability of a muscle to be stretched back to its original length?

Extensibility (C) Signup and view all the answers

Which of the following is NOT a property of muscle?

Conductivity (B) Signup and view all the answers

Which type of connective tissue surrounds individual muscle fibers?

Loose connective tissue (B) Signup and view all the answers

What is the function of the perimysium?

Containing blood vessels and nerves (D) Signup and view all the answers

What is the purpose of the epimysium?

To separate muscle from surrounding tissues and organs (D) Signup and view all the answers

What forms at the end of a muscle where the collagen fibers of all three layers come together?

A tendon (D) Signup and view all the answers

What type of cells are found in the endomysium and have a function in muscle repair?

Satellite cells (A) Signup and view all the answers

How do muscles attach to their origins and insertions?

Through connective tissue (C) Signup and view all the answers

What is the characteristic of fleshy attachments?

Connective tissue fibers are short (D) Signup and view all the answers

What is the term for a type of indirect attachment where connective tissue forms a flat, broad sheet?

Aponeurosis (A) Signup and view all the answers

What is the primary function of connective tissue in muscle attachments?

To provide structural support (B) Signup and view all the answers

What is the term for a type of indirect attachment where connective tissue forms a cord-like structure?

Tendon (C) Signup and view all the answers

Contractility

The ability of a muscle to shorten and generate pulling force.

Thermogenesis

The production of body heat.