A &P 2 STRAITERLINE FINAL EXAM QUESTION AND ANSWERS NEWEST 2024-2025 GRADED A+
/STRAITELINE ANATOMY AND PHYSIOLOGY
Simple squamous epithelium - answer-Tiled floor (fried eggs). Location: endothlium (lining of cardio.
system) Forms epithelial layer of serous membranes (mesothelium). Functions in sites of filtration and
diffusion.
Simple cuboidal epithelium - answer-single layer of cube shaped cells w/ round, centerally located
nucleus. Covers surface of ovary, lines anterior surface of eye lens. Its function is secretion and
absorption.
nonciliated simple columnar epithelium - answer-has goblet cells, Lines GI tract and gallbladder. Secrets
and absorbs.
goblet cells - answer-modified c.e. cells that secrete mucus at apical surface.
ciliated simple columnar epi - answer-Lines some bronchioles, uterine tubes, uterus.
Function: Cilia push mucus and foreign particles along the surface of the cell.
pseudostratified columnar epi - answer-ciliated variety lines upper respiratory tract and contains goblet
cells, and traps particles which are swept away. nonciliated ducts of many glands. . Nonciliated absorbs
and protects.
stratified squamous epi.l - answer-some are keratinized (in apical layers), some are not. Keratinized
forms superficial layer of skin, non K. lines wet surfaces (mouth, esophagus, parts of epiglottis and
pharynx, and vagina) and covers tounge. Both Protect against abraision, water loss, ultraviolet radiation
and foriegn invasion. First line of defense against microbes.
stratified cubiodal - answer-fairly rare. Ducts of adult sweat glands and esophageal glands, part of male
urethra. Protection, limited secretion and absorption.
stratified columnar epi - answer-uncommon, shortened, irregular cells. Only apical layer has columnar
cells. Lines part of urethra; large excretory ducts of some glands such as esophageal; small areas in anal
mucous membrane, part of conjunctiva of eye. Protects and secretes.
, A &P 2 STRAITERLINE FINAL EXAM QUESTION AND ANSWERS NEWEST 2024-2025 GRADED A+
/STRAITELINE ANATOMY AND PHYSIOLOGY
transitional epi - answer-variable appearance. looks like strat. cuboidal epi in relaxed state, but apical
layer cells are large and rounded. As tissue is stretched, cells become flatter and look more like strat.
squam. epi. Ideal for loning hollow structures due to multibple elastic layers. Lines urinary bladder,
portions of ureters and urethra and allows urinary organs to stretch and maintain protective lining while
holding variable amounts of fluid without rupturing.
Epithelial tissues - answer-cover the body, line various structures, form glands.
connective tissues - answer-protect, support, bind organs together, store energy and help provide
immunity.
muscular tissue - answer-contracts and generates force and heat.
nervous tissue - answer-detects changes in the environment and generates nerve impulses that activate
muscular contraction and glandular secretion.
What do gap junctions do? - answer-allow cellular communication via passage of electrical and chemical
signals between adjacent cells.
which types of cell junctions are found in epithelial cells? - answer-tight junctions, adherens junctions,
Which type of junction prevents the contents of organs from leaking into surrounding tissues? - answer-
tight junctions.
Why are epithelial and connective tissues found adjacent to each other? - answer-Because epithelial
tissues lack blood vessles and form surfaces, they are always found immediately adjacent to blood
vessel rich connective tissue. This allows them to make exchanges with the blood necessary for the
delivery of oxygen and nutrients and the removal of wastes. (this is critical to their survival).
which cell shape is best adapted for the rapid movement of substances from one cell to another ? -
answer-Substances move more quickly through squamous cells because they are so thin.
/STRAITELINE ANATOMY AND PHYSIOLOGY
Simple squamous epithelium - answer-Tiled floor (fried eggs). Location: endothlium (lining of cardio.
system) Forms epithelial layer of serous membranes (mesothelium). Functions in sites of filtration and
diffusion.
Simple cuboidal epithelium - answer-single layer of cube shaped cells w/ round, centerally located
nucleus. Covers surface of ovary, lines anterior surface of eye lens. Its function is secretion and
absorption.
nonciliated simple columnar epithelium - answer-has goblet cells, Lines GI tract and gallbladder. Secrets
and absorbs.
goblet cells - answer-modified c.e. cells that secrete mucus at apical surface.
ciliated simple columnar epi - answer-Lines some bronchioles, uterine tubes, uterus.
Function: Cilia push mucus and foreign particles along the surface of the cell.
pseudostratified columnar epi - answer-ciliated variety lines upper respiratory tract and contains goblet
cells, and traps particles which are swept away. nonciliated ducts of many glands. . Nonciliated absorbs
and protects.
stratified squamous epi.l - answer-some are keratinized (in apical layers), some are not. Keratinized
forms superficial layer of skin, non K. lines wet surfaces (mouth, esophagus, parts of epiglottis and
pharynx, and vagina) and covers tounge. Both Protect against abraision, water loss, ultraviolet radiation
and foriegn invasion. First line of defense against microbes.
stratified cubiodal - answer-fairly rare. Ducts of adult sweat glands and esophageal glands, part of male
urethra. Protection, limited secretion and absorption.
stratified columnar epi - answer-uncommon, shortened, irregular cells. Only apical layer has columnar
cells. Lines part of urethra; large excretory ducts of some glands such as esophageal; small areas in anal
mucous membrane, part of conjunctiva of eye. Protects and secretes.
, A &P 2 STRAITERLINE FINAL EXAM QUESTION AND ANSWERS NEWEST 2024-2025 GRADED A+
/STRAITELINE ANATOMY AND PHYSIOLOGY
transitional epi - answer-variable appearance. looks like strat. cuboidal epi in relaxed state, but apical
layer cells are large and rounded. As tissue is stretched, cells become flatter and look more like strat.
squam. epi. Ideal for loning hollow structures due to multibple elastic layers. Lines urinary bladder,
portions of ureters and urethra and allows urinary organs to stretch and maintain protective lining while
holding variable amounts of fluid without rupturing.
Epithelial tissues - answer-cover the body, line various structures, form glands.
connective tissues - answer-protect, support, bind organs together, store energy and help provide
immunity.
muscular tissue - answer-contracts and generates force and heat.
nervous tissue - answer-detects changes in the environment and generates nerve impulses that activate
muscular contraction and glandular secretion.
What do gap junctions do? - answer-allow cellular communication via passage of electrical and chemical
signals between adjacent cells.
which types of cell junctions are found in epithelial cells? - answer-tight junctions, adherens junctions,
Which type of junction prevents the contents of organs from leaking into surrounding tissues? - answer-
tight junctions.
Why are epithelial and connective tissues found adjacent to each other? - answer-Because epithelial
tissues lack blood vessles and form surfaces, they are always found immediately adjacent to blood
vessel rich connective tissue. This allows them to make exchanges with the blood necessary for the
delivery of oxygen and nutrients and the removal of wastes. (this is critical to their survival).
which cell shape is best adapted for the rapid movement of substances from one cell to another ? -
answer-Substances move more quickly through squamous cells because they are so thin.
