Question 1

Which of the following best describes the primary function of tight junctions in epithelial tissue?

Accepted Answer

They prevent leakage of substances between cells.

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 study materials, what type of burn is this?

Accepted Answer

Second-degree burn

Question 3

Which of the following is a function of the hypodermis as described in the study guide?

Accepted Answer

Adipose storage, insulation, and shock absorption

Question 4

A biopsy of a gland reveals that its secretions are released by exocytosis without loss of cytoplasm. Which type of exocrine secretion is this?

Accepted Answer

Merocrine

Question 5

Which of the following best explains why vitamin D synthesis is important for bone health?

Accepted Answer

Vitamin D is converted to calcitriol, which increases calcium absorption in the intestines.

Question 6

A long bone is fractured and healing begins. According to the study materials, what is the correct sequence of healing events?

Accepted Answer

Hematoma → callus (internal/external) → spongy bone → compact bone

Question 7

Which hormone increases blood calcium levels by stimulating osteoclast activity?

Accepted Answer

Parathyroid hormone (PTH)

Question 8

A tissue sample from the trachea shows ciliated cells that appear layered but all touch the basement membrane. What type of epithelium is this?

Accepted Answer

Pseudostratified columnar epithelium

Question 9

Which of the following connective tissues is specialized for energy storage and insulation?

Accepted Answer

Adipose connective tissue

Question 10

A patient with a genetic defect in desmosomes would most likely experience which of the following symptoms?

Accepted Answer

Reduced resistance to mechanical stress in tissues

Question 11

Which of the following best describes the difference between compact and spongy bone?

Accepted Answer

Compact bone is dense and provides strength; spongy bone is trabecular and houses marrow.

Question 12

A child presents with bowed legs and delayed growth. Laboratory tests reveal low calcium and vitamin D levels. Which bone abnormality is most likely present?

Accepted Answer

Rickets

Question 13

Which of the following best describes the function of reticular connective tissue?

Accepted Answer

Forms a supportive framework for organs such as the liver and spleen

Question 14

A patient with a mutation affecting the production of collagen in cartilage would most likely have problems with which cartilage function?

Accepted Answer

Support and reduction of friction in joints

Question 15

Which of the following best describes the process of endochondral ossification?

Accepted Answer

Bone replaces cartilage models, as seen in long bones.

Question 16

A patient with a deficiency in parathyroid hormone (PTH) would most likely exhibit which of the following symptoms?

Accepted Answer

Decreased blood calcium levels

Question 17

Which of the following best explains why stratified squamous epithelium is found in the skin?

Accepted Answer

It provides protection against abrasion and pathogens.

Question 18

A patient with a mutation in the gene for keratin would most likely have abnormalities in which structure?

Accepted Answer

Hair and nails

Question 19

Which of the following best describes the role of osteoclasts in bone tissue?

Accepted Answer

Resorb bone matrix and release calcium

Question 20

A patient with a mutation that prevents the formation of gap junctions in cardiac muscle would most likely experience which of the following?

Accepted Answer

Impaired electrical conduction between heart cells

Study Guide: Tissue Level of Organization, Integumentary System, and Osseous Tissue & Bone Structure

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