anterior muscles (q6) Flashcards
a
h-zone
b
i-band
c
m-line
d
a-band
e
myofibril
f
z-disk
a
terminal cisternae
b
transverse tubule
c
sarcoplasmic reticulum
d
sarcolema
e
endomysium
f
triad
a
nucleus
b
myosatellite cell
c
sarcoplasm
d
motor end plate
e
synaptic cleft
f
synaptic vessicle
g
mitochondria
h
myelinated axon
a
galea aponeurotica of the epicranius
b
occipitalis of the epicranius
c
masseter
d
frontalis of the epicranius
another name for frontalis
frontal belly
another name for occipitalis
occipital belly
another name for galea aponeurotica
aponeurosis
e
nasalis
f
depressor anguli oris
a
temporalis
b
orbicularis oculi
c
zygomaticus major
d
buccinator
e
risorius
a
frontalis of epicranius
b
orbicularis oculi
c
levator labii superioris
d
zygomaticus minor
e
zygomaticus major
a
nasalis
b
risorius
c
depressor anguli oris
d
orbicularis oris
e
depressor labii inferioris
f
mentalis
a
orbicularis oris
b
mentalis
c
mylohyoid
d
gleniohyoid
muscle only seen on cadaver between nasal bone and glabella under the frontalis
corrugator supercilli
a
thyrohyoid
b
clavicular head of the sternocleidomastoid
c
superior belly of the omohyoid
d
sternal head of the sternocleidomastoid
a
thyrohoid
b
superior belly of the omohyoid
c
sternohyoid
d
anterior belly of the digastric
e
mylohyoid
a
posterior belly of the digastric
b
stylohyoid
a
gleniohyoid
b
mylohyoid
c
thyrohyoid
d
cricothyroid
a
inferior belly of the omohyoid
b
sternal head of the sternocleidomastoid
c
clavicular head of sternocleidomastoid
d
thyrohyoid
e
superior belly of the omohyoid
f
sternohyoid
g
cricothyroid
a
biceps brachii
b
pectoralis major
c
pectoralis minor
d
serratus anterior
a
deltoid
b
pectoralis major
c
clavicular head of the pectoralis major
d
sternocostal head of the pectoralis major
e
coracobrachialis
f
short head of biceps brachii
g
pectoralis minor
a
deltoid
b
pectoralis major
c
deltoid
d
pectoralis minor
e
insertion of serratus anterior
a
coracobrachialis
b
short head of the biceps brachii
c
long head of the biceps brachii
d
inferior belly of the omoyoid
a
deltoid
b
long head of the biceps brachii
c
brachialis
d
brachioradialis
e
extensor carpi radialis longus
f
extensor carpi radialis brevis
g
abductor pollicis longus
h
extensor pollicis brevis
i
extensor pollicis longus
a
deltoid
b
coracobrachialis
c
biceps brachii
d
brachialis
a
brachioradialis
b
extensor carpi radialis longus
c
extensor carpi radialis brevis
d
abductor pollicis longus
e
extensor pollicis brevis
f
extensor pollicis longus
a
extensor digitorum
b
extensor digitis minimi
c
extensor ulnaris
a
supinator
b
pronator teres
c
abductor pollicis longus
d
extensor pollicis brevis
e
extensor pollicis longus
f
extensor indicis
a
deltoid
b
long head of the biceps brachii
c
brachialis
d
brachioradialis
a
extensor carpi radialis longus
b
abductor pollicis longus
c
extensor pollicis brevis
d
extensor digitorum
a
extensor carpi radialis brevis
b
extensor carpi ulnaris
c
extensor digiti minimi
d
tendon of extensor pollicis longus
a
deltoid
b
serratus anterior
a
pronator teres
b
extensor carpi radialis brevis
c
biceps brachii
d
brachialis
e
brachioradialis
f
extensor carpi radialis longus
a
external oblique
b
internal oblique
c
transverse abdominis
d
external oblique
e
rectus abdominis
f
linea alba
g
rectus sheath
origin of clavicular head of pectoralis major
clavicle
origin of sternocostal head of the pectoralis major
sternum and costal cartilages 2-6
insertion of pectoralis major
greater tubercle of humerus
action of pectoralis major
prime mover of arm flexion; adducts and medial rotates arm
origin of the deltoid
spine and acromion process of the scapula, lateral 1/3 of clavicle
insertion of deltoid
deltoid tuberosity of humerus
action of deltoid
prime mover of arm abduction; synergist in flexion and extension of arm
origin of coracobrachialis
coracoid process of scapula
insertion of coracobrachialis
mid-medial shaft of humerus
action of coracobrachialis
flexes and adducts arm
origin of serratus anterior
ribs 1-8/9
insertion of serratus anterior
ventral surface of vertebral border of scapula
origin of pectoralis minor
ventral surface of ribs 3-5
insertion of pectoralis minor
coracoid process of the scapula
origin of the long head of the biceps brachii
supraglenoid tubercle of the scapula
origin of the short head of the biceps brachii
coracoid process of scapula
insertion of biceps brachii
radial tuberosity of radius
action of biceps brachii
major forearm flexor; supinates forearm; weak flexor of arm
origin of of brachialis
anterior, distal surface of humerus
insertion of brachialis
coronoid process and tuberosity of the ulna
action of brachialis
major forearm flexor
origin of brachioradialis
lateral epicondyle of humerus
insertion of brachioradialis
styloid process of radius
action of brachioradialis
forearm flexion
4 functions of muscle tissue
produce movement, open or close body passages, maintains posture/ stabilizes joint, and generates heat
what type of muscle opens/closes body passages
circular muscles/ sphincters
id muscle type
skeletal muscle
id muscle type
cardiac muscle
id muscle type
smooth muscle
what type of muscle is multinucleate?
skeletal muscle
what connects cardiac muscle
intercalated disks
rigid bar that moves a fixed point
lever
what usually serves as a lever in the body
bone
fixed point that a lever moves around
fulcrum
what usually serves as a fulcrum in the body
joint
force acting on a lever that causes movement
effort
where does effort occur
at a muscle’s insertion
force action on a lever to resist movement
load
examples of load
weight or gravity
describe a mechanical advantage
load is closer to the fulcrum than effort such that a small effort moves a large load
describe a mechanical disadvantage
effort is closer to the fulcrum than the load so that a large effort moves a small load
another name for mechanical advantage
power lever
another name for mechanical disadvantage
speed lever
what type of lever moves a greater distance
mechanical disadvantage
fulcrum is located between the load and effort
1st class lever
what type of lever can operate at either a mechanical advantage or disadvantage
1st class lever
effort and load on the same side but the load is closer to the fulcrum
2nd class lever
type of lever operates at a mechanical advantage
2nd class lever
effort and load on the same side but effort is closer to the fulcrum than load
3rd class lever
what type of lever operates at a mechanical disadvantage
3rd class lever
what filaments present in the i band
actin
what filaments present in h zone
myosin
what filaments present in a band
actin and myosin
symptoms of anabolic steroid overuse
acne, hairloss, shriveled testes, liver damage
microtears in muscle fibers bring about an inflammatory response in connective tissue to cause pain
delayed onset muscle soreness
chronic pain syndrome spread widely across the body but especially affecting the lower back and neck
fibromyalgia
treatments of fibromyalgia
antidepressants, exercise, and pain meds
x-linked form of this condition causing changes in dystrophan to prevent contraction, starting peripherally and moving centrally
duchenne muscular dystrophy
myoglobin pours into the bloodstream and clogs kidneys, leading to kidney and heart failure
rhabdomyolysis
voluntary age-related skeletal muscle loss caused by inadequate diet, physical inactivity, or a decrease in hormones. Could be diagnosed by a sarcF or a physical exam
sarcopenia
what does sarcf stand for?
strength, assistance in walking, rise from chair, climb stairs, falls
inflammation of muscle tendon sheath
tenosynovitis
a
psoas major
b
iliacus
a
iliacus
b
psoas major
a
iliacus
b
adductor longus
c
adductor magnus
d
sartorius
a
gracilis
b
iliopsoas
c
rectus femoris
d
vastas medialis
a
pectineus
b
iliopsoas
c
graciliis
d
adductor longus
e
adductor magnus
a
vastus lateralis
b
vastus intermedius
c
vastus medialis
a
vastus lateralis
b
rectus femoris
c
iliotibial tract
d
tensor fasciae latae
a
tibialis anterior
b
extensor digitorum longus
c
peroneus longus
d
peroneus brevis
e
extensor hallucis longus
f
peroneal retinaculum
g
peroneus tertius
h
extensor retinaculum
a
tensor fascia latae
b
iliotibial tract
c
vastus lateralis
d
vastus medialis
a
psoas major
b
iliacus
c
pectineus
d
adductor longus
e
gracilis
a
vastus intermedius
b
rectus femoris
c
quadriceps tendon
d
patellar ligament
origin of iliacus
iliac fossa of the os coxa, ala of the sacrum
insertion of the iliacus
lesser trochanter of femur
action of the iliacus
prime mover of thigh flexion, postural muscle
origin of psoas major
vertebrae t12-l5
insertion of psoas major
lesser trochanter of femur
origin of sartorius
anterior superior iliac spine of the os coxa
insertion of the sartorius
medial proximal tibial shaft
action of sartorius
flexes and laterally rotates leg; flexes lower leg
origin of rectus femoris
anterior inferior iliac spine and superior margin of the acetabulum of the os coxa
insertion of all quadriceps femoris
patella via quadriceps tendon
action of rectus femoris
flexes thigh, extends lower leg
origin of vastus lateralis
greater trochanter and linea aspera of femur
action of vastus lateralis and vastus medialis
extends leg, stabilizes patella
origin of vastus medialis
linea aspera of femur
origin of vastus intermedialis
proximal anterolateral femoral shaft
action of vastus intermedius
extends lower leg
origin of tensor fasciae latae
anterior aspect of iliac crest and anterior superior iliac spine of os coxa
insertion of tensor fasciae latae
iliotibial tract
action of tensor fasciae latae
abducts and flexes thigh
origin of pectineus
pubis of the os coxa
insertion of the pectineus
pectineal line of femur
action of pectineus
adducts and flexes thigh
origin of gracilis
ramus and body of pubis of the os coxa
insertion of gracilis
medial proximal tibial shaft
action of gracilis
adducts thigh; flexes and medially rotates lower leg
origin of adductor longus
inferior ramus of the pubis of the os coxa
insertion of adductor longus and adductor magnus
linea aspera of the femur
action of adductor longus
adducts and rotates thigh
origin of adductor mangus
ischial and pubic ramus and ischial tuberosity of the os coxa
action of adductor magnus
extends, adducts, and rotates thigh
describe muscles deep to massater
medial pterygoid is inferior and upwards and lateral pterygoid is superior and downwards
