Muscle Section
Terms
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- Cardiac Muscle
- heart
- Origin Type
- non-moveable
- Actin
- thin muscle
- Ligaments
- attaches bone to bone
- Tendons
- attaches muscles to bones
- Muscles named by
- size, origins, locations
- Quadraceps
- extends knee
- Adduction
- toward midline
- Orbicularis Oculi
- closes eyes
- Supination
- palms turned up
- Inversin
- foot turned in - ankle sprain
- Isotonic Contraction
- Moving
- Pectoralis Major
- common chest muscle
- Soleus
- raise up toes while seated.
- Frontalis
- raises eyebrow
- triceps
- extends elbow
- Plantar flexion
- toes pointed down
- Abduction
- away from midline
- Trapezius
- triangular shaped muscle of neck and back Shrub shoulders
- Heat Production
- hypothermia
- Rhomboid
- pulls should blades together
- Mechanics of Muscle
- Origin and insertion
- Calf
- Gastrocnemius
- flexion
- decreases angle
- Biceps
- inserts on the radius
- Insertion Type
- moveable
- Biceps
- flexes muscle
- Hamstring
- flexes knee
- Contractability Property
- ability to shorten
- Isometric Contraction
- Not moving
- Extension
- increases angle
- Pronation
- palms turned down
- Intercostals
- between the ribs
- Sarcomere
- basic unit of contracting muscle tissue
- Actimyosin
- overlap muscle contracts
- Latissimus dorsi
- broad back muscle
- Origin
- end of the muscle attaches to the stationery bone
- Dorsiflexion
- toes pointed up
- Muscle Function
- Movement, posture, heat production, walk/talk/digest/lung/blood
- Muscle Fibers
- controlled by nerves
- circumduction
- in a circle (head and neck)
- Nerve meets muscle fiber
- neuromuscular junction
- Posture
- muscle tone
- Myofibrils
- small tiny fibers of muscle
- Deltoid
- over shoulder
- Nerve
- motor neuron
- Gluteus Maximus
- extends thigh
- Elasticity Property
- ability to go back to original shape
- Tibialis
- shin splints
- Smooth Muscle
- organs
- Insertion
- end of the muscle attaches to the moving bone
- Extensors
- extend wrist
- muscles around wrist
- 26
- Skeltal Muscle
- voluntary muscle
- Myosin
- thick muscle
- Masseter
- closes jaw
- Eversion
- foot turned out
- flexors
- flex wrist
- Orbicularis Oris
- puckers lips
- Excitability Property
- ability to respond to stimuli