Q: Which equation correctly represents the process of glycolysis in muscle cells?

$$\text{C}_6\text{H}_{12}\text{O}_6 + 2\text{NAD}^+ + 2\text{ADP} + 2\text{P}_i \rightarrow 2\text{C}_3\text{H}_4\text{O}_3 + 2\text{NADH} + 2\text{ATP} + 2\text{H}_2\text{O}$$

Question 1

Which of the following best describes a synarthrosis joint?

Accepted Answer

A joint that allows no motion between the bones.

Question 2

A patient presents with pain and inflammation in multiple joints, and lab tests reveal the presence of autoantibodies. Which type of arthritis is most likely?

Accepted Answer

Rheumatoid arthritis

Question 3

Which structure is responsible for storing calcium ions in skeletal muscle cells?

Accepted Answer

Sarcoplasmic reticulum

Question 4

During muscle contraction, which event directly follows the binding of myosin heads to actin?

Accepted Answer

Power stroke, pulling the thin filament toward the M line

Question 5

Which of the following movements increases the angle between articulating bones?

Accepted Answer

Extension

Question 6

A football player suffers a knee injury. Which type of joint is the knee classified as?

Accepted Answer

Hinge joint

Question 7

Which of the following best describes the role of a synergist muscle?

Accepted Answer

It works together with the agonist to make movement more efficient and smooth.

Question 8

Which equation correctly represents the process of glycolysis in muscle cells?

Accepted Answer

$$	ext{C}_6	ext{H}_{12}	ext{O}_6 + 2	ext{NAD}^+ + 2	ext{ADP} + 2	ext{P}_i ightarrow 2	ext{C}_3	ext{H}_4	ext{O}_3 + 2	ext{NADH} + 2	ext{ATP} + 2	ext{H}_2	ext{O}$$

Question 9

Which type of neuron has one axon and multiple dendrites?

Accepted Answer

Multipolar neuron

Question 10

Which of the following is a structural classification of a joint held together by dense regular collagenous connective tissue and does NOT have a synovial cavity?

Accepted Answer

Fibrous joint

Question 11

A patient is unable to move their thumb away from the palm. Which muscle action is most likely impaired?

Accepted Answer

Abduction

Question 12

Which of the following best describes the function of acetylcholinesterase at the neuromuscular junction?

Accepted Answer

It degrades acetylcholine in the synaptic cleft.

Question 13

Which movement is described as the angular movement of the foot at the ankle in which the angle between the foot and the leg decreases?

Accepted Answer

Dorsiflexion

Question 14

Which of the following is TRUE about the sarcomere?

Accepted Answer

It is the region between two Z-discs.

Question 15

Which of the following is a function of synovial fluid?

Accepted Answer

Provides lubrication, shock absorption, and nutrients to the articulating bones.

Question 16

Which of the following best describes the process of saltatory conduction?

Accepted Answer

Action potentials jump from one node of Ranvier to the next in myelinated axons.

Question 17

Which of the following is the most metabolically active region of a neuron?

Accepted Answer

Cell body

Question 18

A patient with advanced age presents with joint pain and X-rays show wear and tear of the articular cartilage. What is the most likely diagnosis?

Accepted Answer

Osteoarthritis

Question 19

Which of the following is the correct definition of a motor end plate?

Accepted Answer

The region of the muscle cell membrane that contains receptors for acetylcholine.

Question 20

Which of the following best describes the movement called circumduction?

Accepted Answer

A movement that is the sum total of flexion, extension, abduction, and adduction, resulting in a cone-like motion.

Joints, Muscle Structure, and Nervous System: Chapters 8-11 Study Notes

Guida di studio - Domande di pratica

Study guide - Flashcard