Question 1

Which of the following best describes a synchondrosis joint, and where is a classic example found in the human body?

Accepted Answer

A cartilaginous joint united by hyaline cartilage; found at the epiphyseal plate of growing long bones

Question 2

A patient presents with swelling and pain in the knee after a twisting injury during a soccer game. MRI reveals damage to the medial meniscus, anterior cruciate ligament, and medial collateral ligament. This injury is commonly referred to as:

Accepted Answer

The unhappy triad (3 C's) of knee injury

Question 3

Which of the following is NOT a structural feature of all synovial joints?

Accepted Answer

Intervertebral disc

Question 4

Which of the following movements is correctly matched with its definition?

Accepted Answer

Flexion: decreasing the angle between two bones

Question 5

A patient is diagnosed with Lyme disease after a tick bite. Which of the following is a likely consequence if the disease is left untreated?

Accepted Answer

Progressive joint inflammation and possible chronic arthritis

Question 6

Which of the following best explains why Lyme disease is less common on the West Coast of the USA?

Accepted Answer

The tick species that transmits Lyme disease is less prevalent on the West Coast

Question 7

Which of the following is a correct pairing of a synovial joint type and an example?

Accepted Answer

Saddle joint – thumb (carpometacarpal joint)

Question 8

Which of the following is NOT a natural factor that stabilizes synovial joints?

Accepted Answer

Amount of synovial fluid produced

Question 9

Which of the following best describes the role of the sarcoplasmic reticulum in skeletal muscle contraction?

Accepted Answer

It stores and releases calcium ions necessary for muscle contraction

Question 10

During the sliding filament model of muscle contraction, which event occurs immediately after calcium ions bind to troponin?

Accepted Answer

Tropomyosin moves away from actin's binding sites

Question 11

Which of the following is the correct sequence of events at the neuromuscular junction leading to muscle fiber excitation?

Accepted Answer

Action potential arrives at axon terminal → Acetylcholine released → Acetylcholine binds to receptors on sarcolemma → Local depolarization of sarcolemma

Question 12

Which of the following is NOT a characteristic of cardiac muscle tissue?

Accepted Answer

Voluntary

Question 13

Which of the following best describes the process of rigor mortis?

Accepted Answer

ATP is no longer produced, so myosin heads cannot detach from actin, causing muscles to stiffen

Question 14

Which of the following is a correct description of the cross bridge cycle in muscle contraction?

Accepted Answer

Attachment of myosin to actin, power stroke, detachment of myosin, cocking of myosin head

Question 15

Which of the following is NOT a way that ATP is regenerated during skeletal muscle contraction?

Accepted Answer

Breakdown of myoglobin

Question 16

A patient is injected with Botox (botulinum toxin) for cosmetic purposes. Which of the following best explains the effect of Botox at the neuromuscular junction?

Accepted Answer

It prevents the release of acetylcholine, leading to muscle paralysis

Question 17

Which of the following is a distinguishing feature of smooth muscle tissue compared to skeletal muscle tissue?

Accepted Answer

Smooth muscle cells are spindle-shaped and lack striations

Question 18

Which of the following best describes the function of bursae in synovial joints?

Accepted Answer

They reduce friction between adjacent structures such as bone and tendon

Question 19

Which of the following is a correct statement about the anatomical characteristics of the shoulder (glenohumeral) joint?

Accepted Answer

It is a ball-and-socket joint with the greatest range of motion but is less stable than the hip joint

Question 20

Which of the following is a common symptom of rheumatoid arthritis that distinguishes it from osteoarthritis?

Accepted Answer

Symmetrical joint swelling and autoimmune inflammation

Joints and Muscle Tissue: Study Guide for Anatomy & Physiology I (Chapters 8 & 9)

Study Guide - Practice Questions

Study Guide - Flashcards