module 7 head and neck 1 Flashcards
Endocrine glands in the head and neck
pineal pituitary hypothalamus thyroid parathyroid
exocrine glands in the head and neck
salivary sweat ceruminous mucous sebaceous
5 layers of scalp. SCALP
S: skin: large number of sebaceous glands
C: connective tissue, passageway for nerves and vessels
A: apicranial aponeurosis: insertion point for occipital-frontalis muscles.
L: loose areolar tissue: allows the 3 above layers to move
P: pericranium, periosteum of cranial bones
arteries and veins of the scalp
supratroclear and supraorbital - both frontal above eyes. superficial temporal - in front of ear posterior auricular - behind ear and up occipital Occipital
anterior lymphatic drainage of scalp
lymph nodes
- parotid
- submandibular
- cervical
posterior lymphatic drainage of scalp
lymph nodes
- posterior auricular
- occipital
Sagittal suture
between the parietal bones
coronal suture
between frontal and parietal bones
lambdoid suture
between parietal and occipital bones
posterior fontanelle closes
2-3 months
sphenoidal fontanelle closes
6 months
mastoid fontanelle closes
6-18 months
anterior fontanelle closes
12-15 months
salivary glands
parotid: anterior to the ear, above the mandible
submandibular: medial to mandible at the angle of the jaw
sublingual: anterior floor of mouth
thyroid location
isthmus lies over tracheal rings 2-4
- should move with swallowing.
thyroid enlargement
bruit may be heard