Chapt 14: Head, Face, Neck, and Regional Lymphatics Flashcards
What is the thyroid gland? What does it do?
Endocrine gland that secretes thyroxine (T4) and triiodothyronine (T3), hormones that stimulate the rate of cellular metabolism.
How many lymph nodes are in the head and neck?
60-70
What lymph nodes are in the head and neck?
• Preauricular, in front of the ear
• Posterior auricular (mastoid), superficial to the mastoid process
• Occipital, at the base of the skull
• Submental, midline, behind the tip of the mandible
• Submandibular, halfway between the angle and the tip of the mandible
• Jugulodigastric (tonsillar), under the angle of the mandible
• Superficial cervical, overlying the sternomastoid muscle
• Deep cervical, deep under the sternomastoid muscle
• Posterior cervical, in the posterior triangle along the edge of the trapezius muscle
• Supraclavicular, just above and behind the clavicle, at the sternomastoid muscle
Describe what is the lymphatic system?
separate vessel system from the cardiovascular system and a major part of the immune system, whose job it is to detect and eliminate foreign substances from the body.
Nodes are located throughout the body but are accessible to examination in what four locations?
head and neck, arms, axillae, and inguinal region.
What are fontanels? What is their purpose?
bones of the neonatal skull are separated by sutures with membrane-covered “soft spots” allow for growth of the brain during the 1st year and compression during vaginal birth.
Where are tension headaches usually located?
occipital, frontal, or with bandlike tightness.
Where are migraines located?
supraorbital, retro-orbital, or frontotemporal
Where are sinus headaches located?
around the eye or cheek.
What characterizes chronic vs episodic migranes?
- each episode lasting 1 to 3 days.
- chronic occur ≥15 days/month or <15 days/month if episodic
What is a concussion?
results after a direct blow to the skull causes the brain to shift rapidly back and forth inside.
What is presyncope?
light-headed, swimming sensation or feeling of fainting or falling caused by decreased blood flow to brain or heart irregularity causing decreased cardiac output.
What is vertigo? What is objective vs subjective vertigo?
true rotational spinning often from labyrinthine-vestibular disorder in inner ear. With
- objective vertigo the person feels like the room is spinning;
- subjective vertigo the person feels like he or she is spinning.
What is disequilibrium?
shakiness or instability when walking related to musculoskeletal disorder or multi-sensory deficits
What is Dysphagia?
difficulty swallowing.