Test-Questions and Answers Graded A+
Skeletal System - ANSWER-stores fat
makes new blood cells
connective tissue that protects internal organs
Muscular System - ANSWER-provides the force required for body movements
controls heart beats
control movement of food through the digestive system
The body systems together - ANSWER-contain blood vessels and nerve tissue
allows you to ride a bike or skateboard
made up of living cells
liganments - ANSWER-connective tissues that connect the bone to bone are ligaments, moveable
joints
cardiac muscle - ANSWER-the cardiac muscle is found only in the heart and controls the heartbeat
tendons - ANSWER-connective tissues that attach muscles to bone are called tendons
skeletal muscle - ANSWER-the skeletal muscle is a type of muscle that works in pairs to move the
bones
cartilage - ANSWER-cartilage is connective tissuefound beteeen bones to cushion bones and gives
shape and flexibility to other body parts
smooth muscle - ANSWER-smooth muscle is muscle that control involuntary movements in the
internal organs of the body
ball and socket joint - ANSWER-ball and socket joints are found where the bones are able to move
in complete rotation or circular motion such as the hips and the shoulders
gliding joints - ANSWER-gliding joints are found where bones slide over eachother like in wrists and
ankles
pivot joints - ANSWER-pivot joints rotate around each other like in the neck
hinge joints - ANSWER-hinge joints are found in the fingers and toes
epithelial tissue - ANSWER-the skin covers the outside and the inside of the body and organs
nervous tissue - ANSWER-brain,spinal cord, body nerve, enables you to see, hear and think
structure - ANSWER-the way the parts are arranged, thenplan
function - ANSWER-is the job of an organsim or the process it gets carried out
tissue - ANSWER-a group of similar cells the perform the same thing
,muscle tissue - ANSWER-allow the body to move other kinds move blood through the heart and
move food through the digestive system
connective tissue - ANSWER-parts of the body connected and supported. fat, cartilage, bones and
the tendons that attach muscles to bones are connective tissue
organ - ANSWER-a structure that is composed of diffrent kinds of tissue
organ system - ANSWER-a group of organs that work together
homeostasis - ANSWER-the state of which a organisims body stays stable in spite of changes in the
enviroment
stimulus - ANSWER-something inside or outside the body that causes it to react
responce - ANSWER-the action or change of behavior when responding
stress - ANSWER-reaction of your body and mind to threatning ipor challenging events
imoveable joints - ANSWER-joints in the body connect to bones in away that allows no movement or
little. skull, ribbs
moveable joints - ANSWER-most of the joints are this. they allow the body to make a wide range of
movements
marrow - ANSWER-in the bone they contain a soft connective tissue
cartilage - ANSWER-a connective tissue that is more flexiable than bone
involuntary muscles - ANSWER-responsible for breathing and digesting, not under your concious
control
voluntary muscles - ANSWER-under your control, smiling turning a page and getting up for water
muscle cells - ANSWER-only contract not extend, work in pairs, while one muscle contracts the
other muscle returns to its orignal length
The connective tissue covering that encloses the sarcolemma of an individual muscle fiber is called -
ANSWER-endomysium
A fascicle is a - ANSWER-bundle of muscle fibers enclosed by a connective tissue sheath
Thick and thin myofilaments have different compositions. For each descriptive phrase on the left,
indicate whether the filament type described is thick or thin on the right: - ANSWER-Thin - contains
actin, attaches to the Z disc, contains troponin
Thick - contains ATPases, contains myosin, does NOT lie in the I Band
The function of the T tubules in muscle contraction is to - ANSWER-transmit the action potential
deep into the muscle cells
,The sites where the motor nerve impulse is transmitted from the nerve endings to the skeletal
muscle cell membranes are the - ANSWER-neuromuscular junctions
Contraction elicited by a single brief stimulus is called - ANSWER-a twitch
A smooth sustained contraction resulting from very rapid stimulation of the muscle, in which no
evidence of relaxation is seen is called: - ANSWER-fused tetanus
Characteristics of isometric contractions include all but: - ANSWER-shortening
During muscle contraction, ATP is provided by a coupled reaction of creatine phosphate with ADP,
aerobic respiration of glucose, and anaerobic glycolysis. (1) Which provides ATP FASTEST? -
ANSWER-a coupled reaction of creatine phosphate (CP) with ADP
During muscle contraction, ATP is provided by a coupled reaction of creatine phosphate with ADP,
aerobic respiration of glucose, and anaerobic glycolysis. (2) Which ONE of the following requires
that oxygen be available? - ANSWER-aerobic respiration of glucose
During muscle contraction, ATP is provided by a coupled reaction of creatine phosphate with ADP,
aerobic respiration of glucose, and anaerobic glycolysis. (3) Which provides the highest yield of ATP
per glucose molecule? - ANSWER-aerobic respiration of glucose
During muscle contraction, ATP is provided by a coupled reaction of creatine phosphate with ADP,
aerobic respiration of glucose, and anaerobic glycolysis. (4) Which results in the formation of lactic
acid? - ANSWER-anaerobic glycolysis
During muscle contraction, ATP is provided by a coupled reaction of creatine phosphate with ADP,
aerobic respiration of glucose, and anaerobic glycolysis. (5) Which has carbon dioxide and water
products? - ANSWER-aerobic respiration of glucose
During muscle contraction, ATP is provided by a coupled reaction of creatine phosphate with ADP,
aerobic respiration of glucose, and anaerobic glycolysis. (6) Which is most important in endurance
sports? - ANSWER-aerobic respiration of glucose
The neurotransmitter released by somatic motor neurons is: - ANSWER-acetylcholine
The ions that enter the skeletal muscle cell during action potential generation are: - ANSWER-
Sodium Ions - Na 2+
Myoglobin has a special function in muscle tissue, it - ANSWER-holds a reserve supply of oxygen in
the muscle
Aerobic exercise results in all of the following EXCEPT: - ANSWER-increased size of existing
muscle cells
The smooth muscle type found in the walls of digestive and urinary system organs and that exhibits
gap junctions and pacemaker cells is: - ANSWER-single-unit
Some bones help part of the body move. Other bones protect your body but do not help with
movement. In which part of the body do bones help with movement? - ANSWER-bones in the wrist
help with movement, but bones in the skull do not
, The bones in our body come in many different shapes and sizes. What is the most likely reason for
this? - ANSWER-each bone is designed to do a unique job in your body
Bones are connected to each other by: - ANSWER-ligaments
What is the one of the functions of the human skeletal system? - ANSWER-helping in movement
The skeletal system provides all of the following EXCEPT _____. - ANSWER-brain cell production
The skeletal and muscular systems work together to ______. - ANSWER-protects the internal
organs
The skeletal and muscular systems work together to ______. - ANSWER-provide movement for the
body
What part of the skeletal system is a tough, elastic, fibrous connective tissue that is converted to a
hard substance as a person ages? - ANSWER-cartilage
Which system provides movement for the body? - ANSWER-muscular
Muscles that you can control at will are called ________. - ANSWER-voluntary
How are cardiac muscle and smooth muscle alike? - ANSWER-both are involuntary
Which statement correctly summarizes the muscular action required to extend the arm? - ANSWER-
the triceps contracts and the biceps relaxes
Which statement correctly compares the three types of muscles? - ANSWER-skeletal muscle and
cardiac muscle are striated; smooth muscle is not striated
True or false: joints are nonliving parts of our bodies? - ANSWER-false; all bones are living,
including joints, because they contain marrow
Where in your body can you find a hinge joint? - ANSWER-the knee
One type of joint allows for nearly 360 degrees of motion. Which joint is so flexible? - ANSWER-ball
and socket joint
Why is spongy bone called "spongy"? - ANSWER-it has small spaces within it like a sponge
Bone is attached to muscle by _____. - ANSWER-tendons
Bones are living tissue. - ANSWER-true
Yellow marrow exists inside of _____. - ANSWER-compact bone
What connective tissue surrounds a muscle fiber? - ANSWER-endomysium
What connective tissue surrounds a muscle fascicle? - ANSWER-perimysium
muscle fiber is made up of bundles of - ANSWER-myofibril