Question 1

Which of the following best describes the primary function of mesenchyme in embryonic development?

Accepted Answer

It acts as a precursor to all connective tissues due to its high proliferation and ability to differentiate.

Question 2

Loose connective tissue is characterized by which of the following features?

Accepted Answer

Loosely structured fibroblasts and a great amount of ground substance.

Question 3

Which statement correctly differentiates white adipose tissue from brown adipose tissue?

Accepted Answer

White adipose tissue has a single large fat vacuole and is mainly for energy storage, while brown adipose tissue has multiple small vacuoles and is specialized for heat generation.

Question 4

A patient presents with a ligament injury. Which type of connective tissue is primarily affected?

Accepted Answer

Regular dense connective tissue

Question 5

Which of the following is TRUE regarding hyaline cartilage?

Accepted Answer

It covers bone at articular joints and contains mainly type II collagen.

Question 6

Which type of cartilage is most resistant to pressure and shear forces, and where is it commonly found?

Accepted Answer

Fibrocartilage; intervertebral discs and menisci

Question 7

Which of the following best explains the construction principle of bone?

Accepted Answer

Bones are constructed for maximum stability at minimum weight, with trabeculae following main stress trajectories.

Question 8

Which cell type is responsible for bone resorption and what is the main mechanism?

Accepted Answer

Osteoclasts; release of protons and lysosomal hydrolases

Question 9

A deficiency in parathyroid hormone (PTH) would most likely result in which of the following changes in blood calcium levels?

Accepted Answer

Decrease in blood calcium due to reduced osteoclast activity

Question 10

Which process describes the formation of bone directly from mesenchymal cells, and which bones are formed this way?

Accepted Answer

Intramembranous ossification; bones of the skull and face, clavicle

Question 11

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

Accepted Answer

They are embedded in lacunae, extend processes through canaliculi, and are connected via gap junctions for nutrient supply.

Question 12

Which equation best represents the relationship between bone mineralization and hydroxyapatite content?

Accepted Answer

$Ca_{10}(PO_4)_6(OH)_2$

Question 13

A histological section shows star-shaped cells connected via gap junctions and a high rate of proliferation. Which tissue is most likely being observed?

Accepted Answer

Mesenchyme

Question 14

Which of the following is NOT a function of bone tissue?

Accepted Answer

Thermoinsulation

Question 15

Which tissue type is most likely to be found filling gaps between organs and beneath epithelial surfaces?

Accepted Answer

Loose connective tissue

Question 16

Which of the following best describes the arrangement of collagen fibers in tendons?

Accepted Answer

Collagen fibers are arranged in parallel bundles to resist unidirectional tension.

Question 17

Which type of bone marrow is primarily responsible for haematopoiesis?

Accepted Answer

Red bone marrow

Question 18

Which of the following tissues is classified as a basic tissue type in the human body?

Accepted Answer

Epithelial tissue

Question 19

Which of the following best explains why articular cartilage lacks a perichondrium?

Accepted Answer

It must remain deformable and frictionless for joint movement.

Question 20

Which process is responsible for bone formation in the extremities and axial skeleton, and what is the precursor tissue?

Accepted Answer

Enchondral ossification; cartilage

Connective Tissue Histology: Structure and Function in Human Biology

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