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Chapter 7: Muscles
Muscular System
75
Anatomy
10th Grade
01/24/2013

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Term
Origin
Definition
Point of attachment with no movement
Term
Insertion
Definition
Point of attachment with motion
Term
Action
Definition
Description of movement
Term
Prime Mover
Definition
Chiefly responsible for movement
Term
Antagonist
Definition
Acts in opposition to prime mover
Term
Synergist
Definition
Muscle supporting prime mover
Term
4 Fibers, in 2 different directions
Definition
Why is the Abdominal so strong?
Term
Position head and spine
Capable to breath
Definition
Functions of Axial Muscles
Term
Hernia
Definition
A weak abdominal wall causes _________.
Term
Sphincter
Definition
What is voluntary and helps with potty training?
Term
Spinal Extensors
Definition
Group of muscles from the pectoral to the pubis
Term
Keep body upright opposing gravity
Definition
Spinal extensors _________.
Term
Maxillary bone and Mandible
Definition
Origin of the Buccinator
Term
Blends into fibers of Orbicular Orbis
Definition
Insertion of the Buccinator
Term
Compresses cheeks
Definition
Action of the Buccinator
Term
Maxillary Bone and Mandible
Definition
Origin of Orbicular Oris
Term
Lips
Definition
Insertion of the Orbicular Oris
Term
Purses Lips
Definition
Action of the Orbicular Oris
Term
Zygomatic Bone
Definition
Origin of Zygomaticus
Term
Angle of mouth; Upper lip
Definition
Insertion of Zygomaticus
Term
Draws mouth back and up
Definition
Action of Zygomaticus
Term
Medial Margin of Orbit
Definition
Origin of Orbicular Oculi
Term
Skin around eye lids
Definition
Insertion of Orbicular Oculi
Term
Closes eye
Definition
Action of Orbicular Oculi
Term
Epicranial Aponeurosis
Definition
Origin of Frontalis
Term
Skin of eyebrow; Bridge of nose
Definition
Insertion of Frontalis
Term
Raises eyebrows; wrinkles forehead
Definition
Action of Frontalis
Term
Zygomatic Arch
Definition
Origin of Masseter
Term
Lateral surface of mandible
Definition
Insertion of Masseter
Term
Elevates Mandible
Definition
Action of Masseter
Term
Along temporal lines of skull
Definition
Origin of Temporalis
Term
Coronoid process of Mandible
Definition
Insertion of Temporalis
Term
Elevates Mandible
Definition
Action of Temporalis
Term
Superior margins of Sternum and Clavicle
Definition
Origin of Sternocleidmastoid
Term
Mastoid region of skull
Definition
Insertion of Sternocleidmastoid
Term
Moves neck
Definition
Action of Sternocleidmastoid
Term
Inferior border of each rib
Definition
Origin of External Intercostals
Term
Superior border of next rib
Definition
Insertion of External Intercostals
Term
Elevates ribs
Definition
Action of External Intercostals
Term
Superior border of each rib
Definition
Origin of Internal Intercostals
Term
Inferior border of proceeding of rib
Definition
Insertion of Internal Intercostals
Term
Depresses ribs
Definition
Action of Internal Intercostals
Term
Xiphoid Process; anterior surface of Lumbar Vertebrate
Definition
Origin of Diaphragm
Term
Central Tendinous Sheet
Definition
Insertion of Diaphragm
Term
Expands thoracic cavity
Definition
Action of Diaphragm
Term
Lower 8 ribs
Definition
Origin of External Oblique
Term
Linea Alba and Iliac Crest
Definition
Insertion of External Oblique
Term
Compresses abdomen, depresses ribs, laterally flexes vertebral column
Definition
Action of External Oblique
Term
Illiac Crest and adjacent connective tissues
Definition
Origin of Internal Oblique
Term
Lower ribs, linea alba
Definition
Insertion of Internal Oblique
Term
Compresses abdomen, depresses ribs, laterally flexes vertebral column
Definition
Action of Internal Oblique
Term
Cartlidges of lower ribs
Definition
Origin of Transverse Abdominus
Term
Linea Alba and Pubis
Definition
Insertion of Transverse Abdominus
Term
Compresses Abdomen
Definition
Action of Transverse Abdominus
Term
Superior surface of pubis around symphasis
Definition
Origin of Rectus Abdominus
Term
Inferior surfaces of costal cartlidges and xiphoid process
Definition
Insertion of Rectus Abdominus
Term
Depresses ribs; flexes vertebral column
Definition
Action of Rectus Abdominus
Term
Inferior medial surfaces of ischium and pubis
Definition
Origin of External Urethral Sphincter
Term
Base of penis
Definition
Insertion of External Urethral Sphincter
Term
Closes Urethra
Definition
Action of External Urethral Sphincter
Term
By tendon from coccyx
Definition
Origin of External Anal Sphincter
Term
Encircles anal opening
Definition
Insertion of External Anal Sphincter
Term
Closes anal opening
Definition
Action of External Anal Sphincter
Term
Zygomaticus
Definition
When the _______ contracts, the corner of the mouth is drawn upward.
Term
Buccinator
Definition
_____________ compresses wall of the cheeks.
Term
Orbicular Oris
Definition
_____________ causes the lips to purse.
Term
elevate mandible
Definition
Temporalis acts to __________ ____________.
Term
Orbicular Oculi
Definition
____________ can close the eye.
Term
Sternocleidmastoid
Definition
__________ can pull head to one side.
Term
Frontalis
Definition
___________ is used for pouting.
Term
Zygomaticus
Definition
Muscle used to smile
Term
Linea Alba
Definition
Band of tough connective tissue in the midline of the anterior abdominal wall; muscle attachment
Term
Transverse Abdominus
Definition
Forms third layer of the abdominal wall muscles
Term
Compress Abdomen
Definition
What is the action of the external Oblique?
Term
Depresses ribs; flexes vertebral column
Definition
Action of rectus abdominus
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