Scalp Flashcards
What can the five layers of the scalp spell?
Skin, Connective tissue, Aponeurosis, Loose Connective Tissue, Periosteum…SCALP
What are the principal sources of blood to the scalp?
internal carotid and external carotid artery branches
What location will each branch of the fifth cranial nerve pass into upon exit from the middle cranial fossa?
ophthalmic nerve—orbit;
maxillary nerve—pterygopalatine region;
mandibular nerve—infratemporal region
Which divisions of the trigeminal nerve receive sensory information from the scalp?
all 3 divisions; ophthalmic nerve, maxillary nerve, & mandibular nerve
What nerves and cord levels of origin to the cervical plexus supply the scalp?
greater auricular nerve–C2,C3 ventral rami branches;
lesser occipital nerve–C2 (C3) ventral rami branches
Which dorsal ramus nerve branch (name and cord level of origin) supplies the scalp?
greater occipital nerve–C2, C3 communicating ramus
What nerve provide motor innervation to the scalp?
facial nerve branches
What type of motor fibers to skeletal muscle are given off by the facial nerve?
branchial efferent (BE)
What is the embryonic origin of skeletal muscles innervated by the facial nerve?
the skeletal muscle is derived from the branchial arches hence branchial efferent
What is the third layer of the scalp associated with?
muscular component of the scalp
What muscles are specifically associated with the scalp?
frontalis and occipitalis bellies of the epicranius muscle
The bellies of the epicranius muscle are connected by what structure?
galea aponeurotica
