ANAPHY LAB Flashcards
Origin: Occipital
Insertion: Skin of Eyebrow
Action: Elevates brows: moves scalp
Occipitofrontalis
Origin: Maxilla, Frontal
Insertion: Encircles Eye, near origin
Action: Closes Eye
Orbicularis Oculi
Origin: Maxilla, Mandible
Insertion: Lips
Action: Closes Lips
Orbicularis Oris
Origin: Maxilla, Mandible
Insertion: Angle of mouth
Action: Compresses Cheeks
Buccinator
Origin: Zygomatic Bone
Insertion: Angle of mouth, upper lip
Action: elevates angle of mouth, upper lip
Zygomaticus (2)
Origin: Maxilla
Insertion: Upper lip, nose
Action: elevates upper lip, nose
Levator Labii Superioris
Origin: Mandible
Insertion: Lower Lip near angle
Action: Depresses angle of mouth
Depressor Anguli Oris
Origin: Temporal Aspect of the skull
Insertion: mandible
Action: closes jaw
Temporalis
Origin: Zygomatic Arch
Insertion: Mandible
Action: Closes Jaw
Masseter
Origin: Inferior aspect of the skull
Insertion: Mandible
Action: Medial closes jaw: lateral opens jaw
Pterygoids (2)
Origin: sternum, clavicle
Insertion: Mastoid process
Action: Rotates, flexes neck
Sternocleidomastoid
Origin: Skull, upper vertebral column
Insertion: scapula
Action: Extends head, neck
Trapezius
Origin: Vertebrae, pelvis
Insertion: Superior vertebrae, ribs
Action: Holds body upright
Erector Spinae
Origin: vertebrae
Insertion: vertebrae
Action: Flexes or extends the trunks
Deep back muscles
Origin: Ribs
Insertion: Edge of next rib (inferiority)
Action: Expands Thorax
External Intercostals
Origin: Ribs
Insertion: Edge of next rib (superiority)
Action: Compresses Thorax
Internal Intercostals
Origin: Pubis
Insertion: Inferior Thoracic cage
Action: Flexes waist
Rectus abdominis
Origin: Inferior thoracic cage
Insertion: Midline of Abdomen
Action: Compresses abdomen
External Abdominal Oblique
Origin: Pelvis
Insertion: Midline of Abdomen
Action: Compresses abdomen
Internal Abdominal Oblique
Origin: Vertebrae, pelvis, ribs
Insertion: Midline of abdomen
Action: Compresses Abdomen
Transversus abdominis
Origin: Skull, upper vertebral column
Insertion: scapula
Action: Extends head, neck; elevates, depresses, or rotates scapula
Trapezius
Origin: Vertebrae
Insertion: Scapula
Action: Elevates scapula
Levator Scapulae
Origin: Vertebrae
Insertion: scapula
Action: retracts scapula
Rhomboideus (2)
Origin: Ribs
Insertion: Scapula
Action: protracts scapula
Serratus Anterior
Origin: Vertebrae
Insertion: Humerus
Action: Extends, adducts arms
Latissimus Dorsi
Origin: Ribs
Insertion: Scapula
Action: Depresses scapula
Pectoralis Minor
Origin: Ribs, clavicle
Insertion: Humerus
Action: Adducts, flexes arms
Pectoralis Major
Origin: Scapula
Insertion: Humerus
Action: Extends, adducts, rotates arm
Teres Major
Origin: scapula
Insertion: Humerus
Action: extends, rotates arms
Infraspinatus
Origin: Scapula
Insertion: Humerus
Action: Abducts arms
Supraspinatus
Origin: Scapula
Insertion: Humerus
Action: Extends, rotates the arm
Subscapularis
Origin: Scapula
Insertion: Humerus
Action: adducts, rotates arm
Teres Minor
Origin: Scapula, Clavicle
Insertion: Humerus
Action: abducts arms
Deltoid
contracts, or shortens, with a force and therefore is responsible for movement
Main characteristic of Muscle
Main Functions of a mucle
- Movement
- Maintenance of posture
- Respiration
- Body Heat
- Communication
- Constriction of Organs
- Heart Contraction
Types of Muscle
- Skeletal
- Cardiac
- Smooth
Location:___________________ (Skeletal Muscle)
Attaches to the bone or other connective tissues
Cell Shape: ____________________ (Skeletal Muscle)
Very long, Cylindrical cells
Nucleus:________________________ (Skeletal Muscle)
Multinucleated, located peripherally
Function:______________________ (Skeletal Muscle)
Moves the body
Control:__________________________ (Skeletal Muscle)
Striations:_________________________
Special Feature:_____________________
-Voluntary
-Present
-None
Location:___________________ (Cardiac Muscle)
Heart
Cell Shape: ____________________ (Cardiac Muscle)
Cylindrical cells that branch
Nucleus:________________________ (Cardiac Muscle)
Single, Centrally located
Control:__________________________ (Cardiac Muscle)
Striations:_________________________
Special Feature:_____________________
- Involuntary
- Present
- Branching fibers, Intercalated disks containing gap junctions joining the cell to each other
Function:______________________ (Cardiac Muscle)
Provides major force for moving blood through the blood vessels
Location:___________________ (Smooth Muscle)
In the walls of hollow organs, blood vessels, eyes, glands, skin