Unit Two Exam Flashcards
In a subcutaneous injection, the substance (like insulin) is placed into the hypodermis via a needle and syringe. T OR F
True
These cells produce melanin.
melanocytes
When you think about the skin, you think about:
picking up a penny
washing your hair
goosebumps
all of the above
all of the above
This is responsible for thermoregulation (cooling).
sweat glands
This protects against mechanical damage and dessication.
keratin
Nails are a continuation of this layer of the epidermis.
stratus lucidum
This is responsible for thermoregulation (warming).
arrector pili muscles
The nail grows from the:
root
Another name for the hypodermis is the:
subcutaneous layer
The structure that produces hair.
hair follicle
This muscle causes your hair to stand on end and causes goose bumps.
arrector pili
Exocrine glands in the skin include:
Answers:
sweat glands
sebaceous glands
mammary glands
all of the above
all of the above
Feeling the softness of a cotton ball or pain of a hot flame is this function of the skin:
sensory organ
The larger “balloons” located in the deep dermis & hypodermis detect deep touch and pressure.
Pacinian corpuscle
Skin is the largest sensory organ in the body. T OR F
True
Which term best describes the function of the hypodermis?
pillow
These sensory receptors are found in the dermis, close to the epidermis, and detect pain, cold, and heat.
Bare nerve endings
This layer of the dermis contributes to the formation of fingerprints.
papillary layer
This layer of the dermis is composed of loose connective tissue.
papillary layer
These specialized apocrine sweat glands found in the breast produce milk.
mammary glands
The secretion from these exocrine glands contains fat and protein which, when mixed with bacteria on the skin, contains an odor.
apocrine sweat glands
One function of the skin is to begin the formation of vitamin D. T OR F
True
Lateral bone of forearm.
Radius
Which 2 bones make up the pectoral girdle?
Clavicle and Scapula
Hematopoiesis in the bone marrow is an example of this skeletal system function.
blood cell production
Cancellous bone is composed of trabeculae resulting in a spongy appearance on the superficial skeleton. T OR F
True
Touching the thumb to the opposite fingers in each hand is called:
opposition
Closing a joint, or moving two bones closer together, is called:
flexion
Have you ever banged your elbow and felt that tingle that radiates all the way down your forearm to your little finger? You hit the _____ nerve which runs along the side of the olecranon process.
ulnar
The bony process of the temporal bone, which you can find behind your ear, serves as an attachment site for muscles.
Mastoid process
This bone contains the foramen magnum.
Occipital bone
The single bone making up the posterior aspect and base of the skull is the:
Occipital bone
Children have red marrow only in the medullary cavities of bone so they can make lots of blood cells. T OR F
True
Which are the floating ribs?
Ribs 11-12
The Greek god, Atlas carried the weight of the world on his shoulders, much like this vertebra carries the weight of the skull:
Cervical vertebra 1
The axial skeleton includes bones of the:
cranium
Identify the heel bone:
Calcaneus
The thigh bone is the:
Femur
Identify the bone type of a lumbar vertebrae.
irregular
This feature of a synovial joint cushions the ends of the bones:
articulating cartilage????
The sutures between the skull bones are examples of these immovable joints:
synarthroses
This anterior hip muscle which flexes the hip is actually 2 muscles that join to insert of the anterior femur:
Iliopsoas
The primary muscle of breathing is the:
Respiratory diaphragm
The motor neuron releases a chemical known as a neurotransmitter which will then stimulate the skeletal muscle cell. The name of that neurotransmitter is:
acetylcholine
Functions of skeletal muscle includes:
moving bones
maintaining posture
generating heat to help regulate body temperature
all of the above are functions of skeletal muscle
all of the above are functions of skeletal muscle
Think of the mineral coupling excitation (action potential) and contraction (sliding filament theory). This is a “great reason to drink your ____! “
milk
Identify what you need to maximize ATP for muscle contraction:
load carbohydrates to store glycogen
do aerobic training to increase oxygen storing myoglobin
supplement creatine phosphate to maximize ATP storage
all of the above would maximize ATP for muscle contraction
none of the above
all of the above would maximize ATP for muscle contraction
This muscle raises the eyebrows and wrinkles the skin of the forehead:
Frontalis
Please select the correct pairing of muscle with its action.
Sternocleidomastoid, unilateral flexion & rotation of head to the opposite side
Sternocleidomastoid, bilateral, full flexion of head
suprahyoid muscles, speaking
infrahyoid muscles, swallowing
all of the above pairings are correct
all of the above pairings are correct
This muscle fully abducts the arm.
Deltoid
Which of the following is the deepest lateral muscle of the abdomen?
Transversus abdominus
Protracting the scapula anteriorly like when you throw a ball.
Serratus anterior
If you can imagine a train as a myofibril, each _____ would be a sarcomere.
boxcar
Drinking milk is good for muscle contraction because it contains this mineral:
calcium
In order for contraction to occur, this ion must bind to troponin to change shape so that myosin can bind to actin.
calcium
When calcium inside the muscle cell is low, the muscle is:
relaxed
These structures, which are invaginations of the sarcolemma, allow the action potential to travel to the interior of the muscle cell:
T tubules
Which ion will bind to troponin to change shape?
calcium
