Muscles Flashcards
Which muscle is involved in raising eyebrows?
Frontalis
Which muscle is involved in closing the jaws?
Temporalis
Which muscle is involved in closing the eyes?
Orbicularis oculi
What muscle is involved in closing the lips?
Orbicularis oris
Which muscle is involved in wrinkling the chin?
Mentalis
Which muscle is involved in tensing the neck?
Masseter
Alternate actions of the ___________ frontal and occipital bellies pull scalp forward and backward.
Epicranius
What strip of connective tissue connects the frontalis and occipitalis?
Epicranial aponeurosis
Which muscle elevates the hyoid bone and makes up the floor of the mouth?
Mylohyoid
Which muscle elevates and retracts the hyoid?
Stylohyoid
Which muscle depresses the larynx and the hyoid if the mandible is fixed?
Sternohyoid
Which muscle depresses the hyoid bone and elevates the larynx?
Thyrohyoid
Which muscle is responsible for flexing and laterally rotating the head?
Sternocleidomastoid
Which muscle depresses the larynx and the hyoid?
Sternothyroid
The ________ is the prime abductor of the arm.
Deltoid
The _________ _______ muscle pulls the scapula forward and downward.
Pectoralis minor
The ___________ _______ adducts and medially rotates the arm.
Pectoralis major
The ________ ________ rotates the scapula so its inferior angle moves laterally and upward.
Serratus anterior
The _________ _________ compresses the abdominal cavity.
Transversus abdominis
The muscle immediately deep to the external oblique
Internal oblique
This muscle flexes the vertebral column and compresses the abdominal wall.
External oblique
This muscle flexes and rotates the lumbar region of the vertebral column and stabilizes the pelvis.
Rectus abdominis
Superficial muscles between the ribs that lift the rib cage and increase thoracic volume.
External intercostals
Deeper muscles between the ribs that aid in expiration.
Internal intercostals
This muscle is a stabilizer that elevates, retracts, and rotates the scapula.
Trapezius
This muscle, found along the back, is a prime extensor of the arm and also participates in adduction and medially rotating the arm.
Latissimus dorsi
These muscles are deep to the trapezius and stretch from the medial side of the scapula to the vertebral column. They help stabilize the scapula.
Rhomboid major and minor. Major is inferior to minor.
This muscle extends to the posterior and inferior side of the shoulder from the medial edge of the scapula. It extends, medially rotates, and adducts the arm.
Teres major
These two muscles are involved in rotating the arm laterally and are part of the rotator cuff.
Teres minor and infraspinatus.
This muscle initiates abduction of the arm and is part of the rotator cuff.
Supraspinatus
This muscle elevates and deducts the scapula. It stretches from the neck to the supramedial edge of the scapula.
Levator scapulae
This muscle is a powerful forearm extensor
Triceps brachii
The muscle flexes and supinates the forearm.
Biceps brachii
This muscle, located deeply and laterally to the biceps, flexes the arm.
Brachialis
This muscle is a synergist in flexing the forearm and also stabilizes the elbow. It is located on the lateral side of the forearm and has its origin at the humerus.
Brachioradialis
This muscle pronates the forearm and is a weak flexor of the forearm.
Pronator teres
This muscle is a powerful flexor of the hand and is located just medial to the brachioradialis when in anatomical position.
Flexor carpi radialis
This muscle tenses the skin and fascia of the palm during hand movements
Palmaris longus
This muscle is a powerful flexor and adductor of the hand. It is located along the medial side of the forearm.
Flexor carpi ulnaris
This muscle flexes the digital phalanx of the thumb.
Flexor pollicis longus
This muscle flexes the hand and middle phalanges of the second to fifth fingers
Flexor digitorum superficialis
This muscle is a synergist in adduction of the hand with the flexor carpi ulnaris. It also extends the hand along with the extensor carpi radialis.
Extensor carpi ulnaris
This muscle is a synergist for abduction of the hand with the flexor carpi radialis. It also extends the hand along with the extensor carpi ulnaris.
Extensor carpi radialis longus
This muscle is the prime mover of finger extension.
Extensor digitorum
These two muscles work together to extend the thumb
Extensor pollicis longus and brevis
This muscle abducts and extends the thumb.
Abductor pollicis longus
This term refers to two closely related muscles whose fibers pass under the inguinal ligament.
Iliopsoas
This member of the iliopsoas is the prime mover for flexing the thigh and for bowing.
Psoas major
This member of the iliopsoas flexes the vertebral column laterally as well as being a prime mover for flexing the thigh.
Iliacus
This muscle adducts, flexes, and medially rotates the thigh.
Pectineus
This muscle stretches from the anterior/inferior side of the anterior superior iliac spine, across the anterior thigh, to the medial side of the knee. It flexes, abducts, and laterally rotates the thigh.
Sartorius
This muscle lies just medial and inferior to the pectineus and also adducts, flexes, and medially rotates the thigh.
Adductor longus
This is the most medial muscle of the thigh. It adducts the thigh and flexes and medially rotates the leg.
Gracilis
This muscle arises from four separate heads and forms the flesh of the front and lateral thigh.
Quadriceps femoris
This member of the quadriceps femoris is responsible for extending the leg and flexing the thigh at the hip
Rectus femoris
To either side of the rectus femoris are the two other members of the quadriceps femoris, both responsible for extending the leg.
Vastus lateralis and medialis
The largest and most superficial gluteus muscle
Gluteus maximus
Deeper buttocks muscle, abducts and medially rotates the thigh.
Gluteus medius
This muscle, found on the posterior and lateral side of the thigh, is responsible for extending the thigh and flexing the leg.
Biceps femoris
This two muscles, found medial to the biceps femoris, are also responsible for extending the thigh and flexing the leg.
Semitendonosus and semimembranosus
This muscle extends from the deepest part of the posterior thigh, via a medial and lateral head, to the superficial calf and attaches to the anterior edge of the Achilles tendon. It is responsible for plantar flexes of the foot when the leg is extended.
Gastrocnemius
This muscle is deep to the gastrocnemius in the calf and is also responsible for plantar flexion.
Soleus
This two muscles are located on the lateral edge of the leg and are involved in plantar flexion and eversion of the foot.
Fibularis longus and brevis
This muscle is the prime mover of toe extension.
Extensor digitorum longus
This muscle helps extend toes at the metatarsophalangeal joints
Extensor digitorum brevis
This muscle plantar flexes and inverts the foot. It is deep to the soleus on the medial side of the calf.
Flexor digitorum longus.
This muscle flexes the great toe. It also plantar flexes and inverts the foot. Located deep to the soleus and lateral to the flexor digitorum longus.
Flexor hallucis longus
This muscle is the prime mover of dorsiflexion.
Tibialis anterior
This muscle is the prime mover of foot inversion, assisted by the flexor digitorum longus and flexor hallucis longus (synergists).
Tibialis posterior
What 4 muscles are involved in thigh extension?
Gluteus maximus, biceps femoris, semitendinosus, and semimembranosus
What three muscles are both thigh flexors and knee extensors?
The quadriceps femoris: rectus femoris, vastus lateralis, and vastus medialis
Which 3 muscles are involved in adduction of the thigh and leg?
Pectineus, adductor longus, and gracilis
What muscles are involved in thigh flexion?
The iliopsoas (psoas major and iliacus), the sartorius, and the quadriceps femoris
What muscle is involved in abducting the thigh?
Gluteus medius
What two muscles are involved in forearm pronation?
Brachioradialis and pronator teres
Name muscle #1
Superior rectus
Name muscle #2
Lateral rectus
Name muscle #3
Inferior rectus
Name muscle #4
Medial rectus
Name muscle #5 and #6
Superior oblique (#5) and inferior oblique (#6)
Name muscle #9
Frontalis (epicranius, frontal belly)
Name muscle #2
Temporalis
Name muscle #11
Orbicularis oculi
Name muscle #12
Levator labii superioris
Name muscle #13 and #14
Zygomaticus minor (#13) and major (#14)
Name muscle #15
Orbicularis oris
Name muscle #6
Buccinator
Name muscle #7
Mentalis
Name muscle #8
Sternocleidomastoid
Name muscle #12
Platysma
Name muscle #9
Trapezius
7
Mylohyoid
1
Digastric
2
Stylohyoid
3
Sternohyoid
4
Omohyoid
5
Sternocleidomastoid
10
Thyrohyoid
11
Sternothyroid
A
Splenius
B
Trapezius
C
Sternocleidomastoid
D
Masseter
H
Levator labii superioris
I
Zygomaticus
J
Buccinator
K
Risorius
3
Pectoralis major
2
Deltoid
12
Serratus anterior
14
Latissimus dorsi
13
External abdominal oblique
15
Rectus abdominis
16
Internal abdominis oblique
17
Transversus abdominis
Name 2A
Coracobrachialis
3C and 3D
3C -Extensor carpi radialis longus; 3D - extensor carpi radialis brevis
3F and 3G
3F: Abductor pollicis longus; 3G: Extensor pollicis brevis
3H
Extensor digitorum
1B
Supraspinatus
1D
Teres minor
1C
Infraspinatus
1E
Teres major
2C
Brachialis
2D
Triceps brachii
3B
Brachioradialis
3M
Flexor digitorum superficialis
3N
Palmaris longus
3J
Extensor carpi ulnaris
This is the anterior forearm. What are #15 and #16?
15 - long palmar muscle; 16 - musculus flexor carpiradialis
This is the anterior upper arm and shoulder. What are 6, 8, and 23?
6 - subscapular muscle; 8 - Latissimus dorsi; 23 - coracobrachial
This is the lateral forearm. What are 11, 12, and 13?
11 - Brachioradial muscle; 12 - musculus extensor carpiradialis brevis; 13 - supinator muscle
34 and 35
34 - extensor digitorum longus muscle; 35 - peroneus longus muscle
46 and 47
46 - Extensor digitorum brevis; 47 - abductor digiti minimi muscle of foot
