Question 1

Which of the following best describes the function of hyaline cartilage in the human body?

Accepted Answer

Forms the articular surfaces of long bones and supports the respiratory tract

Question 2

A patient presents with a fracture in the diaphysis of the femur. Which part of the bone is affected?

Accepted Answer

The shaft or central part of the bone

Question 3

Which equation correctly represents the relationship between bone mass ($$M$$), bone density ($$D$$), and bone volume ($$V$$)?

Accepted Answer

$$M = D 	imes V$$

Question 4

During endochondral ossification, which sequence of events occurs first?

Accepted Answer

Development of a bone collar around the diaphysis

Question 5

Which landmark on a bone is most likely to serve as an attachment site for a ligament?

Accepted Answer

Tuberosity

Question 6

A patient with osteoporosis has decreased bone density. Which component is most affected?

Accepted Answer

Inorganic mineral salts (hydroxyapatite)

Question 7

Which of the following is a synovial joint that allows movement in multiple axes and planes?

Accepted Answer

Ball-and-socket joint

Question 8

If a muscle fiber shortens by 20% during contraction, and its original length is $$L_0 = 10$$\ \mathrm{cm}$$, what is its final length (L_f$)?

Accepted Answer

$$L_f = 8\ \mathrm{cm}$$

Question 9

Which process is responsible for the repair of a bone fracture?

Accepted Answer

Bone remodeling

Question 10

Which of the following movements is an example of angular movement at a synovial joint?

Accepted Answer

Flexion of the elbow

Question 11

Which equation best describes the force ($$F) $$generated by a muscle, given the cross-sectional area ($$A) $$and the specific tension ($$T$$)?

Accepted Answer

$$F = T 	imes A$$

Question 12

Which type of muscle tissue is responsible for voluntary movement and is characterized by striations?

Accepted Answer

Skeletal muscle

Question 13

A patient has a herniated intervertebral disc. Which type of cartilage is most likely involved?

Accepted Answer

Fibrocartilage

Question 14

Which of the following best describes the role of osteons in compact bone?

Accepted Answer

They provide structural support and house blood vessels

Question 15

Which of the following is a depression in a bone that serves as a passageway for nerves and blood vessels?

Accepted Answer

Foramen

Question 16

Which of the following correctly matches the bone type with its example?

Accepted Answer

Irregular bone – Vertebra

Question 17

Which functional characteristic of muscle tissue allows it to respond to a stimulus?

Accepted Answer

Excitability

Question 18

Which structure is found at the neuromuscular junction and is essential for excitation-contraction coupling?

Accepted Answer

Synapse

Question 19

A soccer player suffers a shoulder injury involving the ball-and-socket joint. Which bones are directly involved in this joint?

Accepted Answer

Scapula and humerus

Question 20

Which of the following best explains why the sarcomere shortens during muscle contraction?

Accepted Answer

Myosin filaments slide past actin filaments, pulling Z lines closer together

Lecture Exam 2 Study Guide

Guida di studio - Domande di pratica