Exam

What type of muscle

Skeletal muscle

What type of muscle

Cardiac muscle

What type of muscle

Smooth muscle

Skeletal muscle

Striated

Cardiac muscle

Also striated, but intercalated discs give it a bamboo- like appearance

Smooth muscle

Cell appear “smeared”

Name the structure of skeletal muscle

Tendon

Name structural organization of skeletal muscle

Whole muscle

Name structural organization of skeletal muscle

Fascicle

Name structural organization of skeletal muscle

Muscle fiber

Whole muscle

Tendon + muscle belly

Fascicle

Bundle of fibers

Muscle fiber

Individual muscle cell

Epimusium

Surrounds the muscle belly (Epi=upon)

Perimysium

Surrounds each fascicle (Peri = around)

Endomysium

Surrounds each muscle fiber (Endo= within)

What is it called??

Scapula

What is it called??

Origin

What is it called??

Tendons

What is it called?

Humerus

What is this called

Muscle body(biceps brachii)

What is it called?

Tendon

What is it called?

Insertion

What is this called?

Radius

Tendons

Connect muscle to bone

Muscle belly

Contractile portion

Origin(O)

Fixed end

Insertion(I)

Moveable end

During contraction, muscle shortens which results in an ______

During contraction, muscle shortens which results in an action

Prime mover

Main muscle performing the movement

Synergist

Muscle(s) that aid the prime mover

Fixator

Muscles that stabilize a joint

Antagonist

Main muscle opposing the movement

What muscle?

Synergist - fixator (deltoid, contracting)

what muscle?

Prime mover (biceps brachii, contracting)

What muscle?

Synergist ( pronator teres, contracting?

What muscle?

Prime mover (biceps brachii(flexor), contracting)

What muscle?

Antagonist ( triceps brachii(extensor), relaxing)

Flexors vs. Extension

Flexors touch the tree

Extensors do not!!!!

Abduction

“Help someone abducted my child!”

Addiction

“ Add to the midline”

Supination

Carry a bowl of soup

Probation

Pour it out

Inversion & eversion occur at the _____ think soccer!

Inversion & eversion occur at the ankle think soccer!

Plantarflexion

Push on gas pedal

Dorsiflexion

Easing off the gas pedal

Elevation

“Elevators go up”

Depression

“Depression drags people down”

Anterior group

Extends the knee

Posterior group

Flexes the knee

Medial group

Addicted the thigh

Sartorius

Separates the anterior compartment from the medial compartment

Central Nervous System

Brain, spinal cord

Peripheral Nervous System

Spinal nerves (31 pairs)

Cranial nerves (12 pairs)

Neuron

Basic functional unit of nervous system

Neuroglia

(glial cells)- support cells

Which cells conduct action potentials (nerve impulses)?

Neurons

What’s is the relationship between neurons and nerves?

A nerve is a bundle of neurons

Implication: A nerve’s function is determined by the types of neurons it carries

What is this?

Bone

What is this?

Arachnoid mater

What is this?

Pia mater -adherent to CNS structures

What is this?

Dura mater