A&P exam 1 ch.5
. The ________ exocrine gland stores its secretion until the glandular cell ruptures, whereas the ________ gland releases its apical region and reforms. holocrine; apocrine eccrine; endocrine apocrine; holocrine eccrine; apocrine
Holocrine; apocrine
epithelial tissue
Sheets of tightly packed cells that line organs and body cavities
The structure of a tissue usually is optimized for its function. Describe how the structure of the mucosa and its cells match its function of nutrient absorption.
The mucosa of the intestine is highly folded, increasing the surface area for nutrient absorption. A greater surface area allows more nutrients to be absorbed per unit time.
adipose tissue
Tissue that stores fat, reduces heat loss, energy reservoir, supports and protects and is found around areolar tissue.
. Which connective tissue specializes in storage of fat? tendon adipose tissue reticular tissue dense connective tissue
adipose tissue
Which of the following central nervous system cells regulate ions, regulate the uptake and/or breakdown of some neurotransmitters, and contribute to the formation of the blood-brain barrier? microglia neuroglia oligodendrocytes astrocytes
astrocytes
The nerve impulse travels down a(n) ________, away from the cell body. dendrite axon microglia collagen fiber
axon
what are the three types of muscle tissue?
cardiac, smooth, skeletal
In observing epithelial cells under a microscope, the cells are arranged in a single layer and look tall and narrow, and the nucleus is located close to the basal side of the cell. The specimen is what type of epithelial tissue? columnar stratified squamous transitional
columnar (?)
Why does skeletal muscle look striated?
due to the arrangement of the contractile proteins actin and myosin.
connective tissue matrix is..
fluid, semisolid, gelatinous, fibrous, calcified, and is secreted by connective tissue cells and adjacent cells
Under the microscope, a tissue specimen shows cells located in spaces scattered in a transparent background. This is probably ________. loose connective tissue a tendon bone hyaline cartilage
hyaline cartilage
what does smooth muscle look like?
in blood vessels, and involuntary
classification of exocrine glands
merocrine glands apocrine glands holocrine glands
Skeletal muscle is composed of very hard working cells. Which organelles do you expect to find in abundance in skeletal muscle cell? nuclei striations golgi bodies mitochondria
mitochondria
. Which of the following lines the body cavities exposed to the external environment? mesothelium lamina propria mesenteries mucosa
mucosa
what type of tissue is bone? what is ti made up of?
osseous tissue. matrix w/ salts and fibers,
. In bone, the main cells are ________. fibroblasts chondrocytes lymphocytes osteocytes
osteocytes
What are the functions of astrocytes?
physical and metabolic support for neurons, detoxification, guidance during migration, regulation of energy metabolism, electrical insulation (for unmyelinated axons), transport of blood-borne material to the neuron, and reaction to injury.
Blood is made up of
plasma(matrix) , red blood cells, white blood cells, platelets, formed elements=cells
list the classification of epithelial tissue
shapes: squamous, cuboidal, columnar, transitional, layers: simple, stratifies, pseudostratified
. Which of the following is the epithelial tissue that lines the interior of blood vessels? columnar pseudostratified simple squamous transitional
simple squamous
what does cardiac muscle look like?
striated, branching, and involuntary
what does skeletal muscle look like?
striated, multi-nucleated (eccentric), fibers parallel