Head and Neck General Questions Flashcards
Levator Labii Superioris M.
Function
Elevates Upper Lip (smiling muscle)
Raises angle of Lip
Orbicularis Oculi M.
Function
Sphincter M.
Closes Eye (upper lid)
Zygomaticus Major M.
Function
Pulls corner of mouth superiorly + laterally
Depressor Labii Inferioris M.
Function
Pulls lower Lip Inferiorly + Laterally (frowning)
Platysma M.
Function
Tenses skin of neck
Occipitofrontalis M.
Function
Elevates eyebrows (shock, horror)
Buccinator M.
Function
Clenches cheek against teeth, constricts mouth (blowing gum)
Orbicularis Oris M.
Function
Sphincter M.
Protrudes Lips, Puckers Mouth (kissing)
Labial A. (Sup. + Inf.) supplies blood to…
Lips
- some to gum area
Middle Meningeal A. is a branch of…
Maxillary A.
What goes through the Foramen Magnum
2 Vertebral A.
What goes through Carotid Canal
Internal Carotid A.
What makes up Cerebral Arterial Circle
(Circle of Willis)
Anterior Cerebral A.
Anterior Communicating A.
Ophthalmic A.
Internal Carotid A.
Posterior Cerebral A.
Posterior Communicating A.
Basilar A.
Vertebral A.
Superficial Temporal V. drains into…
Retromandibular V.
Superior + Inferior Ophthalmic Veins drain into…
Angular V.
Angular V. drains into…
Facial V.
Most deep Mater
Pia Mater
Most superficial Mater
Dura Mater
What separates Cerebellum + Cerebrum
Tentorium Cerebelli
Frontal Lobe
-Location
-Function
- frontal bone
- forehead
- executive function (memory , higher learning)
- movement
- control of speech
- language comprehension
Temporal Lobe
-Location
-Function
- L + R
- Temporal Bone
- Hearing, Speech, Memory
- long term visual memory
- language
Parietal Lobe
-Location
-Function
- Parietal Bone
- Sensory, Memory
- Skin (touch, pain, temp)
- sensory input
- numerical reasoning
- language
Occipital Lobe
-Location
-Function
- Occipital Lobe
- Visual Cortex
- Processing Memory w/ Visualization
Primary Motor Cortex
-Location
-Function
- Frontal
- Skilled Movement (fine motor skills)
Primary Somatosensory Cortex
-Location
-Function
- Pariteal
- Receive sensation from Somatic N. (touch from skin, visceral : stomach hungry)
Corpus Callosum
- Connect L + R side of Brain
- Allows Communication b/w sides
Fornix
- C - shaped bundle of nerve fibers
- Hipocampus
- Limbic system (emotion)
- recall tasks
Thalamus
- sensory signals
- alertness/consciousness
- ‘operator of brain’
Limbic Lobe
- arch shaped
- processes info within limbic system
- made up of frontal + parietal lobes
Pineal Gland
Function
- not fully understood
- produce regulatory hormones (melatonin)
- regulation while sleeping (basal functions)
What is known as the tree of life
Cerebellum
Limbic System
Function
- emotion
- motivation
- memory, learning
What makes up Limbic System
- Hippocampus
- Fornix
- Basal Ganglia
- Amygdala
- Mamillary Bodies
Hippocampus
Function
- events and their context, including emotions
Basal Ganglia
Function
- working memory
- motivation
- coordination of eye movement
Amygdala
Function
- emotional processing
- motivation
basal emotions
- fear, love, desire
Mamillary Bodies
Function
- relay for impulses from amygdala to hippocampus
Cerebellum
Function
- fine tuning of memory
- storage of memories
Function of Ventricles in Brain
Production of Cerebrospinal Fluid
Cerebrospinal Fluid
Function
- protect brain
- protect spinal cord
- supply nutrients to tissues
- remove waste products
Cerebral Aqueduct
Connects 3 + 4 ventricle
Lumbar Puncture (Spinal Tap)
Inf. to spinal cord transitions
Between L3 + L4 vertebra
What makes up the Hyoid Muscles
Suprahyoid
Infrahyoid
Geniohyoid M. is innervated by…
Cervical N. (C1)
Anterior belly Digastric M. innervated by…
CN V3 - Trigeminal N. , Mandibular Division
Posterior belly Digastric M. innervated by…
CN VII - Facial Nerve
Suprahyoid Muscles
Mylohyoid
Stylohyoid
Digastic Muscles
Geniohyoid
Infrahyoid Muscles
Sternohyoid
Sternothyroid
Thyrohyoid
Omohyoid
Mylohyoid
Location + Function
(mandible to hyoid)
- raises oral cavity
- elevate hyoid
- elevate tongue
- depress mandible
Thyrohyoid
Location + Function
(thyroid to hyoid)
- depress + elevate hyoid
Sternohyoid
Location + Function
(sternum to hyoid)
- depress hyoid
Sternothyroid
Location + Function
(sternum to thyroid)
- depress thyroid cartilage
Stylohyoid
Location + Function
(styloid process to hyoid)
- help elevate hyoid when swallowing
Omohyoid
Location + Function
(shoulder to hyoid)
- depress hyoid + larynx
- allows hyoid to rotate
Infrahyoid muscles are also known as…
Strap muscles
How many parathyroid glands
4
Where does the thyroid gland form?
tongue
Scalene Muscles
Function
- stabalizing of head
- motions of head
- respiration
Anterior Scalene M.
Location + Function
- insert on 1st rib
- lifts 1st rib
Middle Scalene M.
Location + Function
- longest
- insert on 1st rib
- lifts 1st rib