Muscular Pre-Lec Quiz

False

True or False: Anaerobic respiration is not possible in humans.

Rigor mortis

What is the ‘photographic’ state of muscles upon death causing certain muscles to be stiff while others remain normal?

Skeletal muscle

This histological slide has striations and multinueation, what type of tissue is this?

Myosin and actin

What are the two major protein filaments responsible for muscle actions such as the power stroke?

Mitochondria

Which cellular organelle is in abundance in cells?

Calcium

The Sarcoplasmic reticulum stores…?

Anaerobic respiration

Lactic acid build-up in the human body (muscle soreness) is due to the body undergoing which type of respiration?

Epimysium

What is the layer of connective tissue that surrounds the whole skeletal muscle?

Rotator cuff injury

The glenohumeral joint contains the supraspinatus muscle, the infraspinatus muscle, the teres minor muscle, and the sunscapularis muscle. These all help stabilize the GH joint. An injury to this area is deemed or called what?

Sliding filament theory

What explains how the sarcomeres contract? (it is based on muscle proteins sliding past each other to generate movement)

Carpal tunnel syndrome

What condition is caused by compression of the nerve which can result in numbness, tingling and weakness in the hand and arm?

Adenosine triphosphate

What high energy organic molecule provides energy for cellular work?

Neuromuscular junction

What junction helps to connect the nervous system (motor neuron) to the muscles system (muscle fibers)?

Fast twitch

These fibers are load bearing muscles

Neurotransmitter

Acetylcholine functions as an…?

True

True or False: Slow-twitch fibers are dark red in appearance.

False

True or False: Anaerobic respiration is in the presence of oxygen.

Synthesis of calcium and maintain WBC count

All of the following are functions or properties of muscles except?

Maintain body positions, Movement, Protection and support, Maintain body temperature, Synthesis of calcium, Regulate entrances and exits, Maintain WBC count

Muscles and bones

Calcium is important for ________ and ________.

Clostridium botulinum

The botulinum toxin is one of the most lethal toxins known to man; it acts by blocking nerve function, which ironically has been harnessed for cosmetic purposes such as Botox. What is the name of the organism that produces this toxin?

Muscular dystrophy

Inability to produce a muscular protein; not curable

Tetanus

Also known as “lockjaw”

Polio

Viral disease infecting the spinal cord causing paralysis

Ischemia

Inadequate blood supply causing ‘starvation’ of cells

Skeletal muscle

Voluntary muscle; movement of the body as a whole

Smooth and cardiac muscle

Involuntary muscles; movement within the body