Axial & Appendicular Muscles - Lab Anatomy
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115 Terms
AXIAL MUSCLES
Where is the periosteum located at on a bone?
a dense, fibrous membrane that covers the outer surfaces of almost all bones
Where is the frontalis muscle located at on the face?
the ‘forehead’ muscle
Where is the platysma muscle located at?
the LONG and THICK muscle running down the chin all the way to the shoulder
Where is the orbicularis OCULI muscle located at on the face?
the muscles forming around the EYE
Where is the orbicularis ORIS muscle located at on the face?
muscle forming around the lips of the face
Hint oRis = oRal
Where is the zygomaticus major muscle located at on the face?
muscle running diagonally across cheek bone
Where is the zygomaticus minor muscle located at on the face?
Below the top arrow inside the cheek, smaller muscle below the major.
Where is the buccinator muscle located at on the face?
flattened part within the cheek, next to the orbicular oris but on the cheek
Where is the temporalis muscle located at?
muscles located underneath the temporal bone
Where is the masseter muscle located at?
the thick, rectangular muscle on the side of the face that connects the cheekbone to the lower jaw
Where is the lateral pterygoid muscle located at on the face?
on the inner side of the jaw.. inferior to the temporalis
Where is the medial pterygoid muscle located at?
located deep within the jaw on the inner side of the mandibular ramus, below the lateral pterygoid muscle running diagonally in the cheek
Where is the stylohyoid muscle located at?
THIN, SLENDER muscle on the farthest side below the chin
Where is the mylohyoid muscle located at?
flat, triangular suprahyoid muscle that forms the muscular floor of the mouth
Where is the digastric anterior belly muscle located at?
runs vertically down in front of the mylohyoid
Where is the stylohyoid muscle located at?
thin muscle that is lateral of the mylohyoid and is able to elevate and retract the hyoid
Where is the digastric posterior muscle located at in the neck?
muscle directly behind the stylohyoid
Where is the sternohyoid muscle located at in the neck?
large muscle that runs down vertically from the hyoid bone to the sternum. bone on the right side of the body
light blue muscle
Where is the omohyoid muscle located at on the neck?
diagonal muscle from direction of collar bone to the hyoid bone
purple muscle
Where is the sternothyroid muscle located at?
LEFT of the sternohyoid.. smaller than sternohyoid but still thick and runs vertically down the hyoid
yellow muscle on the LEFT
More anatomical photo of sternohyoid and sternothyroid:
Where is the thyrohyoid muscle located at?
Where is the thyrohyoid muscle located at?
thin muscle ABOVE/infront of the sternothyroid muscle
Where is the sternocleidomastoid muscle located at in the neck?
big muscle of the neck
muscle layer in front of the head muscles
more anterior to the platysma
Where is the splenius capitis muscle located at on the posterior side of the body?
large muscles running diagonally on both sides from the skull down to the spine
Where is the trapezius muscle located at on the back?
muscle that covers the traps of your back (shoulder blade muscles)
Where is the levator scapulae muscle located at?
muscle that elevates the scapula and attaches to it posteriorly (on the back)
purple muscle
Where is the latissimus dorsi muscle located at on the back?
widest and largest muscle in the human back
covers the whole bottom portion of the back, everything below the trapezius
Where is the rhomboideous MINOR muscle located at on the back?
skeletal muscle in the upper back directly underneath the trapezius muscle that connects the spine to the shoulder blade…
most upper part of the rhomboideous muscle
Where is the rhomboideous MAJOR muscle located at?
larger more bottom portion of the rhomboideous muscle
directly below the rhomboideous minor
Where is the splenius capitis muscle located at?
bigger muscle of the back of the neck that extends down to the side on both sides of the neck
Where are the external intercostal muscles in the ribs?
These muscles elevate the ribs during inspiration
Expand the thoracic cavity —> pressure decreases —> air enters
Where are the internal intercostals muscles in the ribs?
these muscles depress ribs during forced expiration
reduce thoracic volume during forced expiration —> pressure increases —> air exits
Where is the diaphragm located at?
underneath the ribs, slightly inside
Where is the external oblique muscle located at?
most top layer of muscle located on the sides of the stomach
Where is the rectus abdominis muscle located at on the body?
muscles that cover the abs (ab muscles)
Where is the internal oblique muscle located at?
lie directly underneath the external oblique
2nd layer
Where is the transversus abdominis located at on the body?
layer of muscle directly underneat the internal oblique
3rd layer of muscle from the skin
Where is the pectoralis MAJOR muscle located at?
top chest muscle
‘pecs’
Where is the pectoralis MINOR located at?
thin slender muscle in purple underneath the MAJOR and ABOVE the ribs
Where is the serratus anterior muscle located at?
Fan-shaped muscle that covers the side of the rib cage that also pulls the shoulder blade forward and keeps it flat against the back
Layers of muscles superficial —> deep
External oblique —> internal oblique —> transversus abdominis
APPENDICULAR MUSCLES:
What is a fascia?
a sheet or band of connective tissues that surround, supports, and seperates muscles and other structures
Where is the deltoid muscle located at on the body?
the muscle around the shoulder
abducts the arm
Where is the teres major muscle located at?
runs horizontally underneath the armpit towards the back
yellow muscle
APPENDICULAR MUSCLES
Where is the subscapularis muscle located at?
The subscapularis is the largest and strongest muscle of the rotator cuff, located on the anterior (front) side of the scapula
Where is the teres major muscle located at?
posteriorly seen
thick shoulder muscle that connects the scapula to the humerus
bigger muscle below the teres minor
Where is the deltoid muscle located at?
large, triangle-shaped muscle that covers the shoulder joint
Where is the supraspinatus muscle located at in the shoulder?
rotator cuff muscle located at the top of the shoulder blade
POSTERIORLY seen
top of the scapula (muscle covers the top back portion)
Where is the infraspinatus muscle located at?
triangular muscle on the back of the shoulder blade below the supraspinatus muscle but above the teres minor muscle
Where is the teres minor muscle at?
diagonally above the teres major, but below the infraspinatus muscle of the scapula
seen posteriorly
Where is the biceps brachii muscle located at?
a large, two-headed muscle located on the front of the upper arm between the shoulder and the elbow
seen anteriorly
other photo of the bicep brachii:
seen from a lateral view, main big muscle in the upper arm
Where is the coracobrachialis muscle located at?
small, slender muscle located in the upper medial part of the arm and armpit region
Other photo of the coracobrachialis:
muscle located medially in the upper arm
Where is the triceps brachii muscle located at?
a large, three-headed muscle located on the back of the upper arm
seen posteriorly only
Where is the brachialis muscle located at?
a deep muscle in the front of the upper arm that acts as the primary and strongest flexor of the elbow
lies directly underneath the biceps brachii
runs through the elbow
Where is the anconeus muscle located at?
small, triangular muscle located at the back of the elbow joint
Other photo of the anconeus:
Where is the brachioradialis muscle located at?
superficial muscle on the thumb side of the forearm that flexes the elbow
most lateral muscle running down from the elbow to the thumb
Where is the extensor carpi radialis brevis muscle located at?
seen posteriorly only
a short forearm muscle that extends and abducts the hand at the wrist
Where is the extensor carpi radialis LONGUS muscle located at?
Muscle located in the posterior forearm between the extensor carpi radialis brevis and the brachioradialis muscles
Where is the supinator muscle located at?
a deep muscle in the posterior compartment of the forearm that rotates the radius to turn the palm upward (supination)
below the extensor muscles
seen posteriorly
Where is the abductor pollicis longus muscle located at?
deep skeletal muscle in the posterior forearm that primarily pulls the thumb away from the palm
RED muscle below the supinator muscle
Where is the extensor pollicis brevis muscle located at?
muscle laterally above the wrist
seen posteriorly
Where is the extensor digitorum muscle located at?
superficial skeletal muscle located in the back of the forearm
muscle a layer above the radialis muscles.. closest to the skin
seen posteriorly running on the lateral side of the forearm
Where is the extensor carpi ulnaris muscle located at?
superficial skeletal muscle in the posterior compartment of the forearm that extends and adducts (ulnar deviates) the wrist
most lateral muscle running down on the posterior side
Where is the extensor digiti minimi muscle located at?
a slender skeletal muscle in the posterior compartment of the forearm that primarily extends the little finger
superficial, runs between the carpi ulnaris and the pollicis brevis on the posterior side of the forearm
Where is the flexor digitorum profundus muscle located at?
DEEPEST forearm muscle that flexes the tips of the fingers medially
seen anteriorly only
Where is the flexor digitorum superficialis muscle located at?
Muscle above the digitorum profundus
biggest superficial medial anterior muscle of forearm
Other photo of the flexor digitorum profundus and superficialis:
only seen anteriorly in the forearm
Where is the flexor carpi radialis muscle located at?
muscle above the PROFUNDUS and SUPERFICIALIS
seen anteriorly and closest to the skin
Other photo of the flexor carpi radialis muscle:
Where is the palmaris longus muscle?
slender, vestigial muscle in the forearm that helps flex the wrist
medially next to the carpi radialis
blue muscle on the left forearm anteriorly
Where is the pronator teres muscle located at?
Yellow muscle above the flexor carpi radialis
primarily rotates the forearm
Where is the flexor carpi ulnaris muscle located at?
another muscle anteriorly closest to the skin at the forearm
most medial muscle anteriorly of the forearm
Other photo of the forearm anterior muscles:
Where is the gluteus maximus muscle located at
“butt” muscle
Where is the gluteus medius muscle located at?
fan-shaped muscle located on the outer surface of the upper hip and pelvis
directly above the “butt muscle” forming around the lower hips and upper butt
Other photo of the gluteus maximus and medius:
Where is the tensor fascia latae muscle located at?
small muscle located at the front and outside of your hip that stabilizes your pelvis when you stand, walk, or run
muscle running down the side of hips and thighs
Where is the piriformis muscle located at?
pear-shaped muscle located deep in the buttock behind the gluteus maximus
muscle stretching from coccyx and hip bones to the top of the femur
Where are the biceps femoris muscle located at?
a two-headed hamstring muscle located on the outer, back part of the thigh
most lateral hamstring muscle, posteriorly
Where is the semimembranosus muscle located at?
Most medial posterior thigh muscle
Where is the semitendinosus muscle located at?
middle hamstring muscle posteriorly
Where is the iliopsoas muscle located at?
anteriorly seen connects across the hip bones and to spine
Other photo of iliopsoas muscle:
anteriorly seen
Where is the rectus femoris muscle located at?
a superficial muscle in the middle of the front of the thigh
Yellow muscle anteriorly of the thigh
Where is the sartorius muscle located at?
muscle running laterally to medially on the upper thigh
longest muscle in the human body
Where is the vastus lateralis muscle located at on the thigh?
most lateral muscle on the thigh
Where is the vastus medialis muscle located at?
a teardrop-shaped muscle located on the inner front of the thigh
closest to the medial side of the thigh anteriorly
Where is the vastus intermedius muscle located at?
deep muscle located in the center of the front of the thigh, sitting directly beneath the rectus femoris muscle
“between” the medialis and lateralis muscles
Other photo of the thigh anteriorly:
Where is the pectineus muscle located at in the adductors section?
top muscle under the hip bone
Where is the adductor longus muscle located at?
a large, triangular muscle located in the inner thigh compartment that pulls the leg inward toward the body
directly below the pectineus
Where is the gracilis muscle located at?
a long, thin, strap-like muscle located in the medial (inner) compartment of the thigh
Where is the adductor magnus muscle located at on the medial thigh?
Muscle covering behind the adductor longus
anteriorly seen but posterior to the adductor longus
Other photo of the adductor magnus muscle:
