Question

Mast cells occur in:
A. Connective tissue
B. Epithelial cells
C. Skeletal tissue
D. Nervous tissue

Answer 1

Hint: Animal tissues are made up of animal cells that have been gathered together. The structure, function, and origin of these tissues are all different. They create a cellular organisational level that sits in the middle of the cell and organ system hierarchy. The functional groupings of tissues are then combined to form organs. Epithelial, connective, muscular, and nerve tissues are the four types of tissues found in animals.

Complete explanation:
Option A: Mast cells are found in connective tissue such as areolar tissue and blood, and they produce histamine to widen blood vessels, allowing WBC to enter and rush to the infection site.
So, option A is correct.
Option B: The cellular shapes and configurations distinguish the several types of epithelial tissues: epithelial squamous, cuboidal, or columnar.
So, option B is incorrect.
Option C: Multiple bundles of muscular fascicles of muscle fibres make up a skeletal muscle. Myofibrils are the building blocks of muscle fibres. Myofilaments are actin and myosin filaments that make up myofibrils.
So, option C is incorrect.
Option D: Neurons and glial cells are the two main cell types found in nervous tissue.
So, option D is incorrect.

Therefore, Option A is the correct answer.

Note:
Epithelial Tissue are made up of cells that line the organ surfaces and cover the exterior sections of the body organs, such as the skin's surface, the reproductive tract, and the digestive system's inner lining. Nervous tissues are the brain and spinal cord's major tissue components of the central nervous system. The cranial nerves and spinal nerves are formed by neural tissue in the peripheral nervous system.