Head, face, neck & lymph Flashcards
Cranial bones
Frontal, parietal, occipital, temporal
Adult sutures
Immovable joints where cranial bones unite
Birth sutures
Movable: for birth process and; brain growth.
Soft spot: fontanels
Name all the sutures
Coronal, sagittal, lambdoid
Coronal suture
Crowns the head from ear to ear at the union of the frontal & parietal bones.
Sagittal suture
Separates the head lengthwise bw the two parietal bones.
Lambdoid suture
Separates the parietal bones crosswise from the occipital bone.
How many bones articulate at the sutures?
14 facial bones
What supports the cranium?
Cervical vertebrae: C1 atlas; C2 axis & down to C7
Skull
Rigid protects brain, supported by cervical vertebrae
Facial muscle function & structure is?
Symmetric bilaterally
Facial sensations of pain or touch are mediated by?
The 3 sensory branches of CN 5: trigeminal.
Parotid glands
In the cheeks over the mandible, anterior to and below the ear.
Largest salivary glands but normally not palpable.
Submandibular glands
Beneath the mandible at the angle of the jaw.
Sublingual glands
Lie on the floor of the mouth.
Temporal artery
Superior to the temporal is muscle.
Pulsation is palpable anterior to the ear.
The neck is home of what blood vessels?
Common and internal carotid arteries and their associated veins.
The major neck muscles are? And are innervated by?
Sternocladomastoid and trapezius
CN XI
The thyroid gland is?
An important endocrine gland with rich blood supply.
Thyroid gland location?
Straddles the trachea in the middle of the neck.
Thyroid gland synthesizes and secretes?
Thyroxine (T4)
Triiodothyronine (T3)
T3 and T4 hormone function?
Stimulate the rate of cellular metabolism.
Lymphatic system function?
Lymph nodes filter lymph and engulf pathogens, preventing harmful substances from entering the circulation.
Where are nodes palpable?
Typically not palpable. Cervical lymph nodes may be palpable in healthy adults but this finding decreases with age.
Only palpable in: Head and neck, arms, axillae, and inguinal region.