$$\text{Vitamin D} + \text{UV light} \rightarrow \text{Cholecalciferol}$$

Question 1

Which type of cell junction is primarily responsible for preventing the passage of molecules (including ions) between adjacent epithelial cells?

Accepted Answer

Tight junctions

Question 2

A patient suffers a deep skin wound. Which step in tissue repair is most directly responsible for the formation of a scar?

Accepted Answer

Fibrosis

Question 3

Which connective tissue cell type is responsible for maintaining cartilage?

Accepted Answer

Chondrocytes

Question 4

Which of the following best describes the function of elastic fibers in connective tissue?

Accepted Answer

Stretch and recoil like rubber bands

Question 5

A histological slide shows a tissue with multiple layers of flat cells. Which type of epithelial tissue is this?

Accepted Answer

Stratified squamous

Question 6

Which of the following is TRUE regarding cartilage?

Accepted Answer

It has a gel matrix and lacks direct blood supply

Question 7

Which muscle type is striated, voluntary, and multinucleated?

Accepted Answer

Skeletal muscle

Question 8

Which layer of the skin contains the most blood capillaries and is responsible for holding 8-10% of the total blood in the body when at rest?

Accepted Answer

Dermis

Question 9

Which gland type releases its product by exocytosis without losing any part of the cell?

Accepted Answer

Merocrine

Question 10

Which connective tissue fiber type is the strongest and provides high tensile strength?

Accepted Answer

Collagen

Question 11

A patient has a disorder affecting the intercalated discs in their heart. Which process would be most directly impaired?

Accepted Answer

Rapid transmission of electrical impulses between cardiac muscle cells

Question 12

Which of the following is a function of the basement membrane?

Accepted Answer

Protects and separates tissues from mechanical stress

Question 13

Which type of connective tissue is found in tendons and ligaments and is characterized by densely packed collagen fibers?

Accepted Answer

Dense regular

Question 14

Which of the following equations correctly represents the absorption of calcium and phosphorus in the skin due to Vitamin D?

Accepted Answer

$$	ext{Vitamin D} + 	ext{UV light} ightarrow 	ext{Cholecalciferol}$$

Question 15

Which tissue type is derived from mesenchyme in the mesoderm?

Accepted Answer

Connective tissue

Question 16

Which of the following best describes the function of goblet cells in epithelial tissue?

Accepted Answer

Secretion of mucus

Question 17

A patient with a burn injury has lost the waterproof barrier of their skin. Which protein is most likely deficient in the affected area?

Accepted Answer

Keratin

Question 18

Which of the following is NOT a function of the skin?

Accepted Answer

Production of synovial fluid

Question 19

Which of the following best explains why cartilage heals slowly after injury?

Accepted Answer

It lacks direct blood supply

Question 20

Which of the following best describes the difference between epithelial and connective tissue?

Accepted Answer

Connective tissue supports and connects, epithelial tissue lines surfaces

Anatomy & Physiology: Tissues, Membranes, and Skin Study Guide

Study Guide - Practice Questions