QUESTIONS WITH CORRECT ANSWERS
GRADED A+
• Levels of organization.
Answer: Subatomic particles, atom, molecule, macromolecule, organelle,
cell, tissue, organ, organ system, organism
• histology.
Answer: the study of tissues; structural basis for understanding organ
physiology
• Anatomy.
Answer: Studies the structure of body parts and their relationships to one
another.
• tissue.
Answer: a group of similar cells that perform the same function; consists of
cells and matrix (fibers and ground substance)
• tight junctions.
Answer: Membranes of neighboring cells are pressed together, preventing
movement of fluid between cells
• gap junctions.
Answer: (communicating junctions) provide cytoplasmic channels between
adjacent cells; allow materials to move from one cell directly into a
neighboring cell
• adhering junctions/desmosomes.
Answer: cells linked by protein plaques; resist tension; prevents the cells
from being pulled apart
• epithelial tissue.
Answer: function= protection, excretion, absorption, secretion. Location=
, cover body surface, cover and line internal organs, compose glands.
characteristics= lack blood vessels (avascular), cells readily divide, cells are
tightly packed, polarity, innervated
• Physiology.
Answer: Concerns the function of the body, in other words, how the body
parts work and carry out their life sustaining activities. Often focuses on
cellular and molecular level.
• Gross or Macroscopic Anatomy.
Answer: Study of large body structures visible to naked eye (ex: heart,
lungs, kidneys).
• connective tissue.
Answer: function= bind, support, protect, fill spaces, store fat, and produce
blood cells. location= widely distributed throughout the body.
characteristics= good blood supply, cells are farther apart, have extracellular
matrix in between
• Regional Anatomy.
Answer: All structures in a particular region of the body, ex: abdomen, leg
• muscle tissue.
Answer: function= movement. location= attached to bones, in the walls of
hollow internal organs, heart. characteristics= contract in response to stimuli
• nervous tissue.
Answer: function= conduct impulses for coordination, regulation,
integration, and sensory reception. location= brain, spinal cord, nerves.
characteristics= communicate with each other and other body parts
• basement membrane of epithelial tissues.
Answer: anchors epithelium to underlying connective tissue
• simple.
Answer: a single layer of cells
• stratified.
, Answer: more than one layer of cells
• pseudostratified columnar.
Answer: single layer of cells of differing heights, some not reaching the free
surface; nuclei seen at different levels; may contain goblet cells and have
cilia
• Systemic Antomy.
Answer: Body structure is studied system by system, ex: cardiovascular
system, you would examine the heart and blood vessels of the entire body.
• Microscopic Anatomy.
Answer: Deals with structures too small to be seen with the naked eye.
• Cytology.
Answer: Studies cells of the body.
• Histology.
Answer: Studies microscopic tissues of the body.
• Developmental Anatomy.
Answer: Traces structural changes that occur throughout the life span.
• Transitional epithelium.
Answer: specialized to change in response to increased tension; located in
urinary system
• squamous.
Answer: these cells fit tightly together, somewhat like floor tiles, and their
nuclei are usually broad and thin; flat like a fried egg
• Embryology.
Answer: Subdivision of developmental anatomy, concerns developmental
changes that occur before birth.
• cuboidal.
Answer: cube-shaped cells with round nuclei
• Principle of complementarity of structure and function.