A&P Practicumming 3 Flashcards
atlanto-occipital joint
Vertebral bone + occital condyles
Condyloid joint
Flexion
Temporomandibular joint
Mandible + temporal bone
Hinge Joint
Elevation
Occipitofrontalis, Frontal and Occipital Belly
Action of Frontal Belly: raises eyebrows
Action of occipital Belly: retracts scalp
Temporalis
Elevates mandible
Orbicularis Oculi
closes eye
Orbicularis oris
closes and purses lips
Platysma
depresses mandible and lower lip
Masseter
elevates mandible
Zygomaticus
elevates corner of mouth
Risorius
draws corner of mouth laterally
Buccinator
compresses cheek
Depressor labii inferiois
depresses lower lip
Depressor anguli oris
depresses corner of mouth
Digastric
elevates hyoid bone
Sternocleidomastoid
Rotates head
Phrenic nerve
innervates diaphragm
Axillary Nerve
innervates deltoid
Radial nerve
innervates extensor muscles of forearm
Musculocutaneous nerve
innervates flexors of forearm
ulnar and median nerves
innervates flexor muscles of hand/wrist
Femoral
innervates quadriceps and sartorius
Obturator nerve
innervates adductor of hip/thigh
Gluteal nerve
innervates gluteus maximus
sciatic nerve
innervates hamstrings
tibial
innervates gastrocnemius, soleus, toe flexors and extensors
fibular/peroneal nerve
innervates gastrocnemius, soleus, toe flexors and extensors
Cervical spinal nerves
C1-C8
Thoracic spinal nerve
T1-T12
Lumbar spinal nerves
L1-L5
Sacral spinal nerves
S1-S5
Coccygeal spinal nerves
Co1