Term
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Definition
Origin: Anterior Inferior Illiac spine
Insertion: Tibial Tuberosity and patella
Action: Flex the thigh, extend the leg |
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Term
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Definition
Origin: Ischial Tuberosity and Linea Aspera
Insertion: Head of fibula, lateral condyle of tibia
Action: Extend thigh, flex leg |
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Term
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Definition
Origin: Illium, sacrum, coccyx
Insertion: Gluteal Tuberosity and illotibial tract
Action: major extensor of thigh, abducts thigh |
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Term
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Definition
Origin: Ischium and pubic bone
Insertion: Linea Aspera
Action: adduct, flex, rotate the thigh |
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Term
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Definition
| Promotes inspiration by increasing the vertical length and volume of the thorax |
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Term
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Definition
| Promotes inspiration by increasing the width (anterior/posterior dimensions) and volume of the thorax. |
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Term
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Definition
| Promotes forced expiration by decreasing the width and volume of the thorax. |
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Term
| Rectus abdominus, external oblique, internal oblique, transversus abdominis |
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Definition
| Muscles of the abdominal body wall. The contraction of these compresses the abdomen and greatly increases pressure within the abdominal cavity to facilitate urination, defecation, childbirth, and forced exhalation. |
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Term
| Deltoid, Gluteus Medius, Vastus Lateralis |
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Definition
| Muscles that serve as the preferred sites for intramuscular injections because of their large sizes, rich blood supplies, and little danger of damaging major nerves or blood vessels. Vastus lateralis-preferred site for injections for toddlers and small infants.) |
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Term
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Definition
| a broad, flat sheet of tendon (ex.-galea, abdominal, and palmar aponeuroses) |
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Term
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Definition
| a narrow band of tendon along the mid-line of the trunk, extending from the xiphoid process to the pubic symphysis |
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Term
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Definition
| bands of tendons running obliquely form the anterior superior iliac spine to the pubic bone (anatomically, they separate the thighs from the trunk) |
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Term
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Definition
| broad bands of tendons on the lateral aspect of the thigh that extend from the iliac crest to the lateral condyle of the tibia. |
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Term
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Definition
| Large, triangular sheets of tendons on the dorsal aspect of the trunk |
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Term
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Definition
| A 2-part muscle united by the galea aponeurosis on the superior and lateral aspects of the skull. Components are the frontalis and occipitalis. |
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Term
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Definition
Part of epicranius
Origin: Galea aponeurosis
insertion: skin above the supraorbital margin
action: raises the eyebrows |
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Term
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Definition
Part of epicranius
Origin: Occipial bone and mastoid process
Insertion: galea aponeurosis
Action: Pull the scalp posteriorly |
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Term
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Definition
origin: temporal bone
Insertion: coronoid process of the madible
Action: Elevates (closes) the jaw |
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Term
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Definition
Origin: Zygomatic Arch
Insertion: Angle and Ramus of the mandible
Action: Elevates (closes) the jaw |
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Term
| Buccinator ("Trumpeter's Muscle") |
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Definition
Origin: Alveolar processes of the posterior mandible and maxillae
Insertion: Orbicularis oris muscle
Action: compresses the cheek when blowing and sucking |
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Term
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Definition
Origin: Fascia associated with the maxillae, mandible and lips
Insertion: muscles and skin at the angle of the mouth
Action: purses and puckers the lips |
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Term
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Definition
Origin: Medial wall of the orbit
Insertion: Tissue of the eyelid
Action: closes the eye |
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Term
| Platysma ("Pouting Muscle") |
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Definition
Origin: Fascia of the deltoid and pectoralis major muscles
Insertion: Mandible and skin of the corners of the mouth
Action: pulls the corners of the mouth down and back |
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Term
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Definition
Origin: Mid-clavicle and manubrium of sternum
Insertion: mastoid process of the temporal bone
Action: flexes and rotates the head |
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Term
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Definition
Origin: Occipial bone and spines of C7 thru all thoracic vertebrae
Insertion: Clavicle, and the acromion and spine of the scapula
Action: extend the head and shrug the shoulders |
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Term
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Definition
Origin: Clavicle, sternum, and the cartilages of the 1st 6 ribs
Insertion: greater tubercle
Action: flex, adduct, and rotate the arm |
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Term
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Definition
Origin: spines of T6-L5, iliac and sacral crests
Insertion: Intertubercular groove
Action: extend adduct and rotate the arm |
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Term
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Definition
Origin: Clavicle, and the acromion and spine of the scapula
Insertion: deltoid tuberosity
Action: abduct the arm |
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Term
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Definition
Origin: supraglenoid tubercle and coracoid process
Insertion: Radial tuberosity
Action: flex and supinate the forearm |
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Term
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Definition
Origin: Distal, anterior humerus
Insertion: Coronoid process of the ulna
Action: flex the forearm |
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Term
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Definition
Origin: Infraglenoid tubercle and psterior body of the humerus
Insertion: olecranon process
Action: extend the forearm |
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Term
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Definition
Origin: Lateral ridge of the distal humerus
Insertion: styloid process of the radius
Action: flex the forearm |
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Term
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Definition
Origin: Medial epicondyle of the humerus
Insertion: 2nd and 3rd metacarpals
Action: Flex the wrist and abduct the hand |
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Term
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Definition
Origin: Medial epicondyle of the humerus
Insertion: Palmar aponeurosis
Action: Flex the wrist |
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Term
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Definition
Origin: medial epicondyle of the humerus and the olecranon process
Insertion:5th metacarpal
Action: flex and adduct the wrist |
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Term
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Definition
Origin: lateral epicondyle of humerus
Insertion: 5th metacarpal
Action: extend and adduct the wrist |
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Term
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Definition
Origin: Lateral epicondyle of the humerus
Insertion: 2nd-5th mid-phalanges
Action: extends the phalanges |
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Term
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Definition
Origin: Iliac fossa and the bodies and discs of vertebrae T12-all lumbar
Insertion: Lesser trochanter
Action: Major flexor of thigh, and flexes trunk on thigh |
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Term
| Sartorius ("Tailor's Muscle") |
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Definition
Origin: Anterior superior iliac spine
Insertion: Medial proximal tibia
Action: Flex the leg, and flex and rotate the thigh |
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Term
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Definition
Origin: Inferior ramus and body of the pubic bone
Insertion: Medial Condyle of tibia
Action: adduct the thigh and flex the leg |
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Term
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Definition
Origin: Lateral condyle and body of the tibia
Insertion: 1st metatarsal and tarsal bones
Action: dorsi-flex and invert the foot |
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Term
| Fibularis (Peroneus) Longus |
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Definition
Origin: Head of the fibula
Insertion: Underfoot to 1st metatarsal and tarsal bones
Action: Plantar flex and evert the foot |
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Term
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Definition
This is actually 2 muscles that shape the sural (calf) region and share a common insertion on the calcanues via the calcaneal tendon:
Gastrocnemius:
Origin: Lateral and medial condyles of the femur
Insertion: Calcaneus (via the calcaneal tendon)
Action: Plantarflex the foot and flex the leg
Soleus:
Origin: Head of the fibula, and the medial, proximal tibia
Insertion: Calcaneus
Action: plantarflex the foot (most important walking muscle) |
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