Question 1

Which layer of the epidermis is primarily responsible for the production of keratin and is found only in thick skin, such as the palms and soles?

Accepted Answer

Stratum lucidum

Question 2

A patient presents with a burn that affects both the epidermis and the entire dermis, but not the underlying hypodermis. According to the classification of burns, which degree of burn does this represent?

Accepted Answer

Third-degree burn

Question 3

Which of the following correctly matches the gland type with its secretion and function in the skin?

Accepted Answer

Apocrine glands: secrete a protein-rich sweat in axillary and genital areas

Question 4

Which bone marking is best described as a rounded articular projection that helps form joints?

Accepted Answer

Condyle

Question 5

A patient with osteoporosis is experiencing increased bone resorption. Which cell type is primarily responsible for this process?

Accepted Answer

Osteoclasts

Question 6

Which of the following equations correctly represents the relationship between force, lever arm, and torque in the context of muscle action on bones?

Accepted Answer

$T = F 	imes r$

Question 7

During the process of bone healing after a fracture, which stage involves the formation of a fibrocartilaginous callus?

Accepted Answer

Soft callus formation

Question 8

Which joint type allows for the greatest range of motion and is found in the shoulder and hip?

Accepted Answer

Ball-and-socket joint

Question 9

A soccer player hyperextends their knee during a game. Which movement term best describes this action?

Accepted Answer

Hyperextension

Question 10

Which of the following best describes the function of the sarcoplasmic reticulum in skeletal muscle fibers?

Accepted Answer

Stores and releases calcium ions

Question 11

Which equation represents the sliding filament theory, relating the overlap of actin and myosin filaments to muscle contraction?

Accepted Answer

$F \propto n_{crossbridges}$

Question 12

A patient is unable to abduct their arm at the shoulder joint. Which muscle is most likely impaired?

Accepted Answer

Deltoid

Question 13

Which of the following is a function of the skeletal system that directly contributes to homeostasis?

Accepted Answer

Hematopoiesis

Question 14

Which structural feature distinguishes synovial joints from other joint types?

Accepted Answer

Presence of a joint cavity filled with synovial fluid

Question 15

A patient with rheumatoid arthritis is experiencing inflammation in the synovial membrane. Which type of joint is primarily affected?

Accepted Answer

Synovial joint

Question 16

Which of the following correctly describes the role of troponin in muscle contraction?

Accepted Answer

Binds calcium ions to initiate conformational change in tropomyosin

Question 17

Which equation best represents the calculation of bone mass density (BMD) as used in clinical assessment?

Accepted Answer

$BMD = \frac{mass}{volume}$

Question 18

A patient has a fracture in the epiphyseal plate of the femur. What is the most likely consequence if not properly treated?

Accepted Answer

Disrupted bone growth

Question 19

Which movement is performed when turning the palm upward, such as when receiving change at a store?

Accepted Answer

Supination

Question 20

Which of the following best explains why cardiac muscle cells are able to contract in a coordinated fashion?

Accepted Answer

Intercalated discs allow electrical coupling

Comprehensive Study Notes: Anatomy & Physiology – Integumentary, Skeletal, Articulations, and Muscular Systems

Study Guide - Practice Questions

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