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36 Cards in this Set

  • Front
  • Back
The four basic tissue types in the body are:

(a) epithelial, connective, muscle, and neural
(b) simple, cuboidal, squamous, and stratified
(c) fibroblasts, adipocytes, melanocytes, and mesenchyme
(d) lymphocytes, macrophages, microphages, and adipocytes
(a) epithelial, connective, muscle, and neural
Collections of specialized cells and cell products that perform a relatively limited number of functions are called:

(a) cellular aggregates
(b) tissues
(c) organs
(d) organ systems
(e) organisms
(b) tissues
The three types of loose connective tissue are:

(a) collagen, reticular, and elastic
(b) areolar, adipose, and reticular
(c) collagen, bone, and cartilage
(d) fluid, supporting, and connective tissue proper
(b)areolar, adipose, and reticular
Two major examples of dense regular connective tissue are:

(a) cartilage and bone
(b) elastic tissue and bone
(c) tendons and elastic tissue
(d) collagen and tendons
(c) tendons and elastic tissue
Intercalated discs and pacemaker cells are characteristic of:

(a) smooth muscle tissue
(b) cardiac muscle tissue
(c) skeletal muscle tissue
(d) a,b, and c are correct
(b) cardiac muscle tissue
Axons, dendrites, and a cell body are characteristics of cells located in:

(a) neural tissue
(b) muscle tissue
(c) connective tissue
(d) epithelial tissue
(a) neural tissue
Functions of epithelia include all of the following except:

(a) providing physical protection
(b) controlling permeability
(c) absorption
(d) producing specialized secretions
(e) storing energy reserves
(e)storing energy reserves
The muscle tissue which shows no striations is ___________ muscle.

(a) skeletal
(b) cardiac
(c) smooth
(d) voluntary
(e) multinucleated
(c) smooth
Osseous tissue is better known as:

(a) cartilage
(b) fat
(c) cellulite
(d) bone
(e) ligament
(d)bone
The dominant fiber type in dense connective tissue is:

(a) collagen
(b) elastin
(c) actin
(d) myosin
(e) fibrin
(a) collagen
What are the four major characteristics of epithelial tissue?
(1) - It consists mainly of cells rather than extracellular materials
(2) - It has a free surface exposed to the external environment or to some internal chamber or passageway.
(3) It is a vascular - that is has no blood vessels
(4) damaged or lost epithelial cells are continuously being replaced.
What three types of layering make epithelial tissue recognizable?
(1) simple; (2) stratified; and (3) transitional
List three basic components of connective tissue.
1) specialized cells; (2) extracellular protein fibers; and (3) a fluid ground substance
Describe the fluid connective tissues and supporting connective tissues in the human body.
Fluid connective tissues are blood and lymph. They have a liquid matrix, and the proteins are held in solution.
Supporting connective tissues are cartilage and bone. They have a firm, dense matrix that contains large, insoluble fibers.
What are the three types of muscle tissue in the body?
(1) smooth muscle tissue; (2) skeletal muscle tissue; and (3) cardiac muscle tissue. Smooth muscle tissue have cells which are short, spindle-shaped, and nonstriated, with a single, central nucleus. Skeletal muscle tissue have cells which are long, cylindrical, striated, and multinucleate. Cardiac muscle tissue have cells which are short, branched, and striated, usually with a single nucleus; cells are interconnected by intercalated discs.
What is the difference between exocrine and endocrine secretion?
Endocrine glands release their secretions into the surrounding interstitial fluid or blood whereas exocrine glands produce secretions that are discharged onto epithelial surfaces. Most exocrine glands release their secretions into tubular passageways called ducts whereas endocrine glands are ductless glands.
Skeletal muscle is described by all of the following EXCEPT:

a) striated
b) voluntary
c) multinucleate
d) autorhythmic
d) autorhythmic
The walls of hollow organs and some blood vessels contain this muscle tissue:

a) striated
b) skeletal
c) cardiac
d) smooth
d) smooth
Which of the following is unique to cardiac muscle tissue:

a) is involuntary
b) is non-striated
c) has intercalated discs
d) contains smooth muscle tissue
c) has intercalated discs
Approximately what percentage of body heat is generated by muscle tissue:
a) 15%
b) 30%
c) 55%
d) 85%
e) 98%
d) 85%
A muscle fascicle is a:

a) bundle of myofibrils
b) bundle of connective tissue
c) bundle of muscle fibers
d) muscle cell
c) bundle of muscle fibers
The smallest contractile unit of skeletal muscle is a:

a) sarcomere
b) motor unit
c) synapse
d) thin filament
a) sarcomere
The major regulatory proteins in muscle tissue are:

a) myosin and tropomyosin
b) myosin and actin
c) actin and troponin
d) troponin and tropomyosin
d) troponin and tropomyosin
Which of the following actions is caused by skeletal muscle:
a) constriction of blood vessels

b) heartbeat
c) dilation of pupil
d) eye movements
d) eye movements
Which of the following does NOT occur in a muscle during contraction:

a) thick and thin filaments bind to each other
b) muscle fibers stretch
c) thick and thin filaments "slide" past each other
d) muscle fibers shorten
b) muscle fibers stretch
This process aids in skeletal muscle relaxation after contraction:

a) calcium is released from intracellular storage sites
b) motor neurons send electrical signal to muscle
c) acetylcholinesterease degrades acetylcholine
d) troponin binds calcium
c) acetylcholinesterease degrades acetylcholine
The stiffness of muscle tissue in rigor mortis partially results from:
a) excessive acetycholine activity on muscle

b) excessive calcium release in muscle
c) excessive lactic acid build up
d) excessive contraction of the fibers
b) excessive calcium release in muscle
A single motor neuron may innervate as few as 3-5 fibers in muscles of the:

a) upper arms
b) legs
c) eye
d) heart
c) eye
When an action potential reaches the presynaptic terminal of the motor neuron:

a) calcium is released inside of the muscle fiber
b) acetylcholine is released into the synaptic cleft
c) acetylcholinesterease is released into the synaptic cleft
d) physical contact between the motor neuron and the muscle fiber occurs
b) acetylcholine is released into the synaptic cleft
Lack of acetylcholinesterase in the synaptic cleft would result in:

a) decrease acetylcholine production by the motor neuron
b) relaxation of the muscle fiber
c) excessive, continuous stimulation of the muscle fiber
d) inability of the motor neuron to stimulate the muscle fiber
c) excessive, continuous stimulation of the muscle fiber
Curare, a toxin, blocks the acetylcholine receptors on muscle tissue. This would result in:

a) increased stimulation of the muscle fiber
b) inability of the muscle to respond to motor nerve stimulus
c) contraction of the muscle fiber
d) excessive contractions and convulsions
b) inability of the muscle to respond to motor nerve stimulus
Training exercises such as jogging, swimming and aerobics have this effect on skeletal muscle tissue:

a) increase number of mitochondria per muscle fiber
b) increase number of muscle fibers
c) increase number of motor units
d) increase number of skeletal muscles
a) increase number of mitochondria per muscle fiber
Muscular dystrophy is a congenital disorder characterized by

a) skeletal muscle degeneration
b) excessive convulsions
c) shaking and trembling
d) only cardiac damage
a) skeletal muscle degeneration
Which of the following muscular disorders characterized by painful musculoskeletal "tender points":

a) fibromyalgia
b) myasthenia gravis
c) Duchenne muscular dystrophy
d) Becker muscular dystrophy
a) fibromyalgia
Anabolic steroids have all these effects except:
a) builds muscle proteins
b) increases muscle strength
c) increases number of muscles in the body
d) can result in liver cancer and heart disease
c) increases number of muscles in the body
Which of the following statements regarding aging and the muscular system is true:
a) aging is associated with decreased myoglobin production
b) the effects of aging can be nearly completely reversed
c) satellite cells increase in aging causing fibrosis
d) young persons have more adipose in muscles compared to elderly persons
a) aging is associated with decreased myoglobin production