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Bio 156 Exam 3 Questions and Answers 2024
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Bio 156 Exam 3 Questions and Answers
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Bio 156 Exam 3 Questions and Answers4 major categories of tissues - Answer -epithelial, connective, muscle, nervous
epithelial tissue - Answer -Tissue that covers outside of the body and lines organs and
cavities. Classified by the number of cell layers and the shape of the cells.
simple squamous epithelium - Answer -Single layer of flattened cells that has a large
surface area that aids in diffusion. These cells are important components of kidneys and
lungs where filtration and diffusion are essential.
simple cuboidal epithelium - Answer -A single layer of cells that is the same heighth and
width. These cells secrete and absorb materials in glands and kidney tubules.
simple columnar epithelium - Answer -A single layer of cells which are taller than they
are wide. The cells line the digestive tract and aid in the secretion and absorption of
materials. Ciliated cells located in the upper respiratory tract, fallopian tubes, and other
passages help to move materials through an internal passageway.
goblet cells - Answer -Secrete a protective lubricating mucus
stratified squamous - Answer -Several layers of flattened cells that serve an important
role in the protection of the body. The cells are found in areas where heavy abrasion
occurs.
Stratified cuboidal or stratified columnar - Answer -These cells are found in limited areas
of the human body including the sweat glands, mammary glands (stratified cuboidal),
the male urethra, and the pharynx (stratified columnar)
psuedostratified columnar - Answer -Single layer of Columnar cells that all rest on the
basement membrane, but which have cell nuclei at different levels, which gives the
appearance of numerous cell layers. Pseudostratified columnar cells secrete or absorb
substances and can be found in the respiratory tract were ciliated tissue propels dust
that is trapped by mucus secreting goblet cells away from the lungs.
transitional epithelium - Answer -Basal cells of transitional epithelia are cuboidal or
columnar, however their appearance changes because they make up the lining of
hollow urinary organs that stretch when filled with urine. As the organs fill, the cells
stretch and become flattened and squamous in appearance
,Gland - Answer -One or more cells that make and secrete a water based fluid that
usually contains proteins
endocrine glands - Answer -Called ductless glands because they do not connect to the
surface, these glands secrete hormones directly into the blood. Examples include the
thyroid and pituitary
Exocrine glands - Answer -Contain ducts through which the secretions pass to the
epithelial surface, includes sweat and oil glands
The heart is in which body cavity - Answer -Thoracic
All glands in the body, such as salivary glands and the pancreas, are derived from
which type of tissue - Answer -epithelial
The benefits of aerobic excercise include all of the following - Answer -Increased
number of mitochondria
Increased blood supply
Increased supply of myoglobin
Increased activity of lipoprotein lipase
The name of an epithelial tissue tells - Answer -The number of cell layers
The shape of the cells
What type of tissue covers body surfaces or lines cavities - Answer -epithelial
The most common type of joint in the human body is a - Answer -Synovial joint
When body temperature is too low, which of the following occurs - Answer -Blood
vessels in the skin contract
Which type of injury is treated first with an ice pack and later with a heating pad? -
Answer -A joint sprain
Which tissue includes blood and adipose tissue? - Answer -Connective tissue
When riding a horse, a jockey squeezes his thighs together to stay on the saddle. This
is an example of - Answer -Adduction
Which of these is an example of positive feedback? - Answer -Labor pains increasing in
frequency and intensity
Epithelial tissues are characterized as such because they - Answer -Cover both external
and internal body surfaces
Which tissue includes the epidermis? - Answer -Epithelial tissue
, The basic unit of nervous tissue is the - Answer -Neuron
What stops growth plates from calcifying, preserving their ability to grow? - Answer -
Growth hormone
A computer programmer complains of pain in his wrist and numbness and tingling of his
fingers. He likely suffers from - Answer -Carpal tunnel syndrome
Which of the following is an inherited disorder in which skeletal muscle fibers break
down? - Answer -Dystrophy
The portion of the skeleton that includes bones of the limbs, shoulder and hips is
classified as the - Answer -Appendicular skeleton
The main function of muscle tissue is - Answer -Contraction
Which muscle tissue is responsible for voluntary movement? - Answer -Skeletal muscle
only
Which of these correctly describes a layer of the skin? - Answer -The dermis is a region
of connective tissue that contains sensory receptors, nerve endings, and blood vessels
Which of the following describes the infectious disease that produces spastic paralysis -
Answer -Tetanus
The strength training involves which of the following - Answer -Intense, short duration
activity
Read muscle fibers are red because they contain large amounts of - Answer -Myoglobin
Which cell characteristic is associated with skeletal muscle? - Answer -multinucleated
What kind of connective tissue has a liquid matrix? - Answer -blood
The bodies of sweat glands and hair follicles are located in which of the following? -
Answer -Dermis
Which muscles are involuntary? - Answer -cardiac and smooth
The general medical term that describes a muscle disorder is - Answer -Myopathy
What structure connects a muscle to a bone? - Answer -tendon
Most homeostatic mechanisms depend on which of the following? - Answer -Negative
feedback
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