WorksheetsSports med
Total questions: 63
Worksheet time: 32mins
What percent of your body weight is made up of muscle?
More than 50%
20%
What is muscle made up of?
Proteins or water
water
How many skeletal muscles do humans have?
600
5
Muscles are the only body tissue that can _____
Contract
bring
Muscles create movement by ___ and ____ joint
Flexing and extending
breathing and showing
What are the 3 types of muscles?
Cardiac, smooth, skeletal
everything
Where is the cardiac muscle found and what does it do?
Found in the middle layer of heart; it makes the heart beat.
slayyyyyyyyy
Cardiac muscle type of contraction?
Invouluntary
voulauntary
Where is smooth muscle found?
In the walls of hollow organs.
Examples Bladder, digestive tract, eye-allows focus, artery walls.
all body
What does smooth muscle allow for? What type of contraction?
Allow contraction and relaxation with great elasticity; Invouluntary
Allow movement
Most skeletal muscles are attached by ____
Tendons
legs
What do muscle do?
a. Create movement
b. maintain posture
c. generate heat
d. stabilize joints
yes queen
What type of contractions do skeletal muscle have?
Voluntary
invol
List 5 major properties of muscular system
a. excitable/irritable
b. Contactable - shortening
c. extensible- stretch without damage
d.Elasticity - Return to original shape
e. Adaptable - change in response
slayyy
What is hypertropher?
Enlarge with work
work
What is atrophy?
Waste away
was
What is ATP considered?
high energy
low energy
What does ATP become when it is used for energy?
ADP
ATP
What does ATP provide energy for?
Muscle contractions, nerve impulse propagtion
nerve
What is ADP considered
Low energy
high energy
How do muscles turn ADP back into ATP?
recycled (eating food)
food
What determines how much ATP can be produce by muscle cells?
Oxygen
cells
How long does stored ATP last?
4-6 secs worth
5 secs
How long does creative phosphate last?
10 secs
5 secs
How long does glycogen stored in liver and muscle or glucose blood last?
30-40 secs burst
50 secs
How long does glycogen glucose, fatty acid in aerobic respiration last?
lasts for hours
1 min
What are carbohydrates and how many units of energy is produced from 1 gram?
Used for energy; 4 units of energy
nothing
What is glycogen? Where is excess glycogen stored?
Found in blood and stored liver and muscle
saly
What 2 things are fats broken down into?
Triglycerides and free fatty acid (FFA)
yea
How many units of energy are produced from 1 gram of fat?
9 cal of energy
5
Why does it provide energy at a slower rate?
Takes longer to break down
bc
How many units of energy are produced from 1 gram of protein? What type of activity is protein good for?
4 cal of energy; endurance activities
everything
What does protein convert into? And what is it important for?
Amino acids; Growth and repair of muscle tissue
all
Anaerobic
Without oxygen; Duration - 30-60 secs
with oxygen
Aerobic
With oxygen; duration - hours
without oxygen
What are the 3 types of muscle fibers?
1. slow oxidative
2. fast-oxidative
3. fast-glycolytic
yes
Describe slow-oxidative
Type 1; endurance activities
s
Describe fast-oxidative
Type 2a; Short term activities requiring bursts of energy
yes
Describe fast-glyolytic
Type 2b; short intense movements where force production is maximal
2a
Muscles are a mix of?
Different fiber types
all types
What determines % of different fibers types of muscles?
Genetics
all
When does fatigue and oxygen debt occur?
When ATP demand is faster than production
queen
What is the oxygen debt
The amount of O2 that must be taken into restore the muscles resting conditions
all the above
What is Isotonic contraction?
Muscles shorten and movement occurs
movement
What is Isometric contraction?
tension in muscles increases, no movement occurs
no movement
What is the origin of muscles?
(start) attachment that is fixed (no movement)
yes
What is the insertion?
(ends) attachment moves with the contraction(movement)
end
how many points of attachment do muscles have, and how is movement attained?
2 points; due to muscles moving an attached bone
2
What does the trapezius do and where is it located?
Elevate or depress scapula; on back
yes
What does latissimus dorsi do and where is it located?
(pull ups) Abducts arm; on back
yes
What does the erector spinae do and where is it located?
Keeps back straight ; on the back
o
What 3 motions does the deltoid do and where is it located?
Only flex; on back
yes
What 2 motions does the pectoral major do and where is it located?
Flexes/horizontally abducts arm; on the front
located
what does the bicep do and where is it located?
flexes elbow joint; on the front
slayyy
What does the rectus abdominus do and where is it located?
flexes abdomen; on front
yes
What does the external oblique do and where is it located?
Side to side; on the side
yes
What does the flexor carpi do and where is it located?
Flexes your wrist; on the front
slay
What does the quadriceps do and where is it located?
Extends lower leg; on the back
okay den
What does the gluteus maximus do and where is it located?
Extends the whole leg; on the back
okay
What does the hamstring do and where is it located?
flexes lower leg; on the back
lower leg
What does tibialis anterior anterior do and where is it located?
Dorsiflex; the front
front
What does the gastrocnemius do and where is it located?
Plantar flexes fast; on the back
on back
What does the extersor carpi do and where is it located?
extends wrist; on the back
back
