Integumentary/Muscular Flashcards
contains sweat glands
Dermis
Composed of dense connective tissues
Dermis
Composed of actively dividing cells
Epidermis
Contains blood vessels
Dermis
Composed of adipose tissue
Hypodermis
Composed of keratinized cells
Epidermis
Hair follicles are embedded
Dermis
Contains nerves
Dermis
Composed of epithelial tissues
Epidermis
Melanin
Epidermis
Which is NOT a mechanoreceptor of the skin?
Pacinian corpuscle
Merkel’s disc
End-bulb of Krause
Meissner’s corpuscle
End-bulb of Krause
This provides your skin with strength and elasticity (as you age you lose this and skin become looser)
Collagen
The following structures are derived from the dermis of the skin EXCEPT
sweat glands
hairs
sensory receptors
fats
sebaceous glands
Fats
In response to stimuli from the sympathetic nervous system, the arrector pili are
responsible for goose bumps
secrete sebum
glands on the skin surface
can lead to excessive sweating
responsible for goose bumps
The ability of muscles to be stretched and return to their original shape is called
Elasticity
Locomotion in caterpillars and leeches is by
Looping movement
Which of the following secretes sebum?
Sebaceous glands
The type of cell that produces melanin, which protects us against UV rays.
Melanocytes
Which is NOT a function of the skin?
excretion
movement
insulation
Vitamin D production
Movement
Muscles are attached to bones by means of a thick cord-like connective tissue known as
Tendon
Muscle that encircles a part thereby regulating its opening
Sphinctor
The sliding filament theory states the following EXCEPT:
Z line seem straight
actins are pulled inward among the myosins muscle shortens
overlapping of actin filaments
A band shortens
A band shortens
Which of the following is NOT a characteristic of epidermal cells?
they do not wear-off
they are continually replaced as they reach the outer skin surface
they die as they move toward the stratum corneum
they mature as they move toward the skin surface
they do not wear-off
Reptiles have dry skin as compared with moist skin of amphibians because they lack
Keratin
Muscle found in walls of bladder, various ducts, arteries and veins.
Smooth muscle
Locomotion in most echinoderms is by
Water vascular system
Muscles are named by the following criteria EXCEPT for
number of layers
direction of fibers
size location of attachment
shape
Number of layers
All have non-muscular type of movement EXCEPT for
Euglena
Paramecium
bacteria
Earthworm
Amoeba
Earthworm
During relaxation of skeletal muscle fibers, a/an _______system pumps calcium back into the sarcoplasmic reticulum for storage:
Active transport
Which of the following ions cause myosin cross-bridges to pull the actin filaments during muscle contraction at increased concentration?
Calcium
The waterproofing protein that fills the cells in the upper layers of thhe epidermis
Keratin
Able to detect pain or stimuli that cause damage to skin.
Nociceptors
The ability of muscles to become shorter and thicker
Contractility
The papillary layer of the dermis is most closely associated with which layer of the epidermis?
Stratum basale
It is the thick myofilament in a muscle.
Myosin
The nails mostly contain which of the following?
Keratin
The functional unit of the myofibril is the
Sarcomere
Which is NOT a sensory receptor of the skin?
thermoreceptors
baroreceptors
nociceptors
mechanoreceptors
Baroreceptors
When a muscle is attached to one end of the bone that does NOT move when muscle contracts, that bone is said to be the ______of that muscle.
Origin
Which specialized integumentary system acting also as support is found in Arthropods?
Chitinous skeleton
Covers fasciculi bundle
Covers muscle fibers
Covers individual fasicle
