Tendons,Joints,Ligaments, Muscles
depressants
Drugs (such as alcohol, barbiturates, and opiates) that reduce neural activity and slow body functions.
stimulants
Drugs (such as caffeine, nicotine, and ) that excite neural activity and speed up body functions.
Hinge joint
Joint between bones (as at the elbow or knee) that permits motion in only one way, elbow and knee, 2 bones ends have smooth hyaline surfaces that are shaped to move against each other. Strong ligaments stop the bones from sliding
3 layers of bone
Outside-hard bone(compact), middle-spongy bone and the center is filled with a jelly like substance called marrow.
Number of muscles in body
Over 600
ball and socket joint
A ball and socket joint allows for rotating and swinging in almost any direction. They are found in the hips and shoulders. ( held together by ligaments and tendons. Also a synovial joint, contained inside a capsule of synovial fluid, with hyaline cartilage on the 2 surfaces of the joint
joint
A place in the body where two bones come together
bone marrow
A soft tissue inside the bone that produces blood cells
cartilage
A type of stiff but flexible tissue found in areas of the body, including joints, the ears and nose, and parts of the rib cage; not as hard as bone but stiffer than muscle.
humerous bone
Arm bone
tendon
Attaches muscle to bone
scapula
Shoulder blade
fibula
Smaller lower leg bone
tibia
The larger more weight bearing bone of the leg (shin bone)
synapse
a gap between nerve cells
fixed joint
a joint that does not move, skull. many separate bones fuse together creating a joint that no longer moves
nerve impulse
a message carried by a neuron; sends messages to the brain on what you feel
Involuntary muscle
a muscle that works without you having to think about it
Voluntary muscle
a muscle that you control by thinking
Pivot joint
a pivot joint works by the end of one bone having a "peg" that fits into a "ring" formed by the other bone. rotating- neck,
synovial joint
ball and socket joint
radius
bone found in the arm extending from the elbow to the wrist
metatarsals
foot bones
patella
kneecap
ulna bone
inner and larger bone of the forearm, attached to the wrist and located on the side of the little finger
reaction time
practice in sports improves this, its how quickly your brain can respond to a stimulus and initiate a response
ligament
tough connective tissue that holds bones together in a joint
maxilla
upper jaw bone
nervous system
Brain, nerve cells, spinal cord
zygoma
Cheek bone
clavicle
Collar bone
mandible
Lower jaw
Gliding Joint
allows one bone to glide/slide over another; found in wrist and ankles, small bones move over one another to increase flexibility. Strong ligaments link them together and stop them moving too far
reflex
an automatic movement of a part of the body
tarsals
ankle bones
