Muscles Of The Body Flashcards
What is the origin of frontalis?
Cranial aponeurosis
What is the insertion of frontalis
Skin of eyebrow
What is the function of frontalis
Raises eyebrows
What is the origin of orbicularis oris
Muscles surrounding mouth
What is the insertion of orbicularis oris
Skin and muscles around mouth
What is the function of orbicularis oris
Closes and protrudes lips
What is the origin of zygomaticus major
Zygomatic bone
What is the insertion of zygomaticus major
Skin and muscle at upper corner of lips
Function of zygomaticus major
Smiling (raises corner of mouth)
Origin of masseter
Zygomatic bone
Insertion of masseter
Mandible
Function of masseter
Elevates mandible closes mouth
Origin of temporalis
Temporal bone
Insertion of temporalis
Mandible
Function of temporalis
Closes mouth, elevates mandible
Origin of sternocleidomastoid
Sternum and clavicle
Insertion of sternocleidomastoid
Temporal bone
Function of sternocleidomastoid
Neck flexion and head rotation
Origin of External intercostals
Superior rib
Insertion of EXTERNAL intercostals
Inferior ribs
Function of EXTERNAL intercostals
Elevates the ribs (assists inspiration)
Origin of INTERNAL intercostals
Inferior ribs
Insertion of INTERNAL intercostals
Superior rib
Function of INTERNAL intercostals
Depresses the ribs (assists expiration)
Origin of Diaphragm
Xiphoid, costal cartilages, lumbar vertebrae
Insertion of diaphragm
Central tendon
Function of diaphragm
Inspiration
Origin of rectus abdominis
Pubis
Insertion of rectus abdominis
Costal cartilages of ribs 5,6,7 and xiphoid process
Function of rectus abdominis
Flexes torso (vertebral column)
Origin of external oblique
Lower 8 ribs
Insertion of external oblique
Iliac crest
Function of external oblique
Flexes and rotates the torso
Origin of transversus abdominis
Lumbodorsal fascia, costal cartilage of ribs 7-12, iliac crest
Insertion of transversus abdominis
Linea alba, pubis
Function of transversus abdominis
Compresses abdomen
Origin of trapezius
Thoracic vertebrae and occipital bone
Insertion of trapezius
Clavicle and scapula
Function of trapezius
Elevates shoulder girdle, extends and rotates neck
Origin of pectoralis major
Clavicle, sternum, cartilage of ribs 2-6
Insertion of pectoralis major
Humerus
Function of pectoralis major
Flexes, adducts, and medically rotates the shoulder
Origin of latissimus dorsi
Spines of lower thoracic vertebrae, lumbar vertebrae
Insertion of latissimus dorsi
Humerus
Function of latissimus dorsi
Extends, adducts, and medially rotates the shoulder
Origin of deltoid
Scapula and clavicle
Insertion of deltoid
Humerus
Function of the deltoid
Abducts and rotates the shoulder
Origin of biceps brachii
Scapula
Insertion of biceps brachii
Radius
Function of the biceps brachii
Flexion of shoulder and elbow, supinates forearm
Origin of brachialis
Humerus
Insertion of brachialis
Ulna
Function of brachialis
Flexes elbow
Origin of brachioradialis
Humerus
Insertion of brachioradialis
Radius
Function of brachioradialis
Flexes elbow
Origin of triceps brachii
Posterior humerus and scapula
Insertion of triceps brachii
Olecranon process of ulna
Function of triceps brachii
Extension of shoulder and elbow
Origin of gluteus Maximus
Ilium and posterior sacrum
Insertion of gluteus maximus
Femur and iliotibial band
Function of gluteus maximus
Extends and laterally rotates the hip
Origin of gluteus medius
Ilium
Insertion of gluteus medius
Greater trochanter of femur
Function of gluteus Medius
Abducts and rotates the hips keeps the pelvis level in gait
Origen of gluteus minimus
Ilium
Insertion of gluteus minimus
Greater trochanter of femur
Function of gluteus minimus
Abducts and medially rotates the hip
What are the four muscles making up the quadriceps femoris?
Rectus Femoris, vastus lateralis, Vastis intermedius, vastus medialis
Where do the quadriceps femoris originate?
Ileum and femur
What is the insertion for the quadriceps femoris?
Tibia via the patella
Functions of quadriceps femoris
All four quadriceps extend the knee, the rectus femoris also flexes the hip
Origin of sartorius
Ilium
Insertion of sartorius
Tibia
Function of sartorius
Flexes, abducts and laterally, rotates the hip, flexes the knee
What three muscles make up the hamstring group
Biceps, femoris, semi tendinosis, semimembranosus
Origin of hamstring group muscles
Ischium and femur
Insertion of hamstring group muscles
Tibia and fibula
Function of hamstring muscles
Flexes the knee, and extends the hip
Origin of tibialis anterior
Anterior tibia
Insertion of tibialis anterior
Medial cuneiform, and first metatarsal
Function of tibialis anterior
Dorsiflexes the ankle and inverts the foot
Origin of fibularis longus
Lateral fibula
Insertion of fibularis longus
First metatarsal and medial cuneiform
Function of fibularis longus
Plantar flexes the ankle and everts the foot
Gastrocnemius origin
Femur
Insertion of gastrocnemius
Calcaneus by Achilles tendon
Function of gastrocnemius
Plantar flexes the ankle and flexes the knee
Origin of soleus
Posterior tibia and fibula
Insertion of soleus
Calcaneus by Achilles tendon
Function of soleus
Plantar Flexes the ankle