Mini Exam 1 Flashcards
varicosities =
*varicose veins
varicosities are what type of feedback?
- positive feedback
What is an arterial anastomosis?
*connection between 2 arteries or between 2 parts of the GI track
Where are arterial anastomosis typically found?
*around joints and in the gut
What is an acquired arterial anastomosis and what do we say?
- loss of blood flow, collateral circulation has developed
Where does a collateral circulation never develop?
*kidney (end artery)
what is an end artery?
*where no collateral circulation has developed
Where is surgical arterial anastomosis seen?
*2 parts of GI tract
What maintains homeostasis and coordinates activities?
*nervous system
What is a cluster of neuron cell bodies in the CNS called?
*nuclei
What is a cluster of neuron cell bodies in the PNS called?
*ganglia
What system receives sensory info (mostly from the outside)?
*PNS
What system integrates/ processes information from the PNS, and forms a motor output (sends back to PNS)?
*CNS
Spinal nerves are found where? Except?
- all over body
* except abdominal pelvic cavity
What pathway is largely carried on spinal nerves?
*sympathetic pathway
What is the sensory division also called?
*afferent information
What is the motor division also called?
*efferents
The visceral sensory division is for what type of pain?
*dull and poorly localized
Are you aware or not aware of the visceral sensory division?
- not aware, unless there is a big problem
* autonomic
Are you aware or not aware of the somatic sensory division?
*aware (sight, hearing) and not aware of (joint position, proprioception)
What is proprioception and what division is it associated with?
- brain understands tension on muscles and tendon
* somatic sensory division
What is the flight of fight division?
*sympathetic division
What division is for rest and digest?
*parasympathetic division
What does the visceral motor division adjust?
- homeostasis to environment
What does the visceral motor division innervate?
*cardiac/ smooth muscles and glands
Is the visceral motor division autonomic or voluntary?
*autonomic, involuntary
What are the effectors for the somatic motor division?
*skeletal muscles (voluntary)
What is a spinal nerve?
*when everything (posterior parts and anterior parts) connect
What happens during vasodilation?
*fewer inputs, tends to relax
Where are most of the dual innervated organs found?
*in the abdominal pelvic cavity
What is the postural muscles?
*slow twitch muscles, lots of myoglobin and mitochondria, don’t fatigue easily
What is a spinal segment?
- part of spinal cord to which all sensory fibers project and from which all motor fibers project of a single spinal nerve
Where does the posterior ramus innervate to?
- motor innervations of deep back muscles
- sensory innervations to zygopophysial joints (limit and allow motion)
- sensory inn to skin
What do zygopophysical joints prone to?
*growths of bone (osteophytes)
What is the superficial layer of the back innervated by?
*anterior ramus
What is the superficial layer of the back for?
*move and stabilize upper limb
What is the intermediate layer of the back innervated by?
*posterior ramus
What is the intermediate layer of the back for?
*thin muscles, there for proprioception
What is the deep layer of the back innervated by?
*post ramus
What is the deep layer of the back for?
*move and stabilize vertebral column and minor muscles too (for proprioception)
Most muscles that move the back are innervated by?
*post ramus
What is dematomes?
*cut skin
What is the lateral attachment (LA) and medical attachment (MA)of the rhomboid?
- LA: medial border of scapulae
* MA: spinous process
What is the MA and LA of the latissimus dorsi?
- MA: thoracolumbar fascia and spinous process
* LA: proximal humerous
what does auscultation mean?
*listening to body sounds
What is the medial inferior, and lateral border of the triangle of auscultation?
- M: trapezius
- L: rhomboid major
- I: latissimus dorsi
What is the floor and roof of the triangle of auscultation?
- floor: deep side (thoracolumbar fascia)
* roof: superficial fascia (fat)
What is the MA and LA and BS of the serratus posterior superior?
- MA: spinous process
- LA: angles of ribs
- BS: dorsal scapula artery and intercostal nerve
What is the LA and MA and BS of the serratus posterior inferior?
- LA: angles of the rib
- MA: spinous process and thoracolumbar fascia
- BS: branches of post. intercostal artery, intercostal nerve
What is the MA and LA and blood supply (BS) for the splenius and is innervated by?
- MA: spinous process
- SA: transverse process and skull
- BS: occipital artery
- innervation: dorsal ramus of spinal nerve
What is the function of the splenius?
*extend neck, rotate head (unilaterally)
What is the LA (superficial attachment) and MA (inferior attachment) and BS and innervation of the semispinalis capitis?
- SA: skull and spinous process
- IA: transverse process
- BS: deep and cervical artery
- innervation: post ramus of spinal nerve
What is the function of the semispinalis capitis?
*extend neck
What is the SA (LA), IA (MA), and BS and innervation of the erector spinae?
- SA: angles of ribs, spinous and transverse process, and occipital lobe
- BS: post intercostal artery
- inn: post ramus
- IA: thoracolumnar fascia (sacrum iliac crest and spinous process)
What is the function of the erector spinae?
*extension of vertebral column
What is the function of the serratus anterior?
*abducts scapula
What is the function of the rhomboids?
*adducts scapula
What is the function of the sternocleidomastoid?
*abducts, rotates, and flexes head
What is the function of the splenius?
*extends and rotates head
What is the function of the external and internal abdominal oblique?
*compresses abdominal wall, laterally rotates trunk
What is the function of the quadratus lumborum?
*extends and abducts vertebral column
What is the function of the adductor longus?
*adducts, flexes and laterally rotates thigh
What is the function of the gluteus maximus and gluteus medius?
*abducts and medially rotates thigh
What is the function of the rhomboid?
- elevate and retract scapulae
* rotate scapulae
What is the BS for the Rhomboids?
*dorsal scap artery and nerve
What is the function of the latissimus dorsi?
*extend upper limb
What is the BS for the latissimus dorsi?
*thorical dorsal artery and nerve
What is the function of the levator scapulae?
*elevate scapulae
What is the BS for the levator scapulae?
*dorsal scapulae artery
What is the LA for the trapezius?
*spine of scapulae
What is the function of the trapezius?
*elevate and retract/ stabilize scapulae
What covers the entire erector spinae?
*thoracolumbar fascia
Why is there blood vessels supplying the vasa nervorum?
*nerve is very metabolically active
What is the enoneurium made of?
*connective tissue
How are the fibers of the symp arranged and what are the neurotransmitters?
- short, then long
* ACh then NE
How are the fibers of the para arranged?
*long then short
Where is the presynaptic gap in on the symp fiber?
*occurs in a ganglion (paravertebral and preaortic)
Where is the pre synaptic gap in on the para fibers?
*near/ in target organ
What fiber is myelinated?
*preganglionic symp neuron
The somatic motor fiber is arranged how and what are its neurotransmitters?
- one long one
* ACh
What type of neurotransmitters do sweat glands use?
*ACh
What is the ratio of neurons in the symp and parasymp?
- symp 1:15
* parasymp 1:1-2
Where can post ganglionic fibers go?
*everywhere in the body (go up chain, or down, or stay and synapse)
What is in the lateral horn?
*cell bodies
Where do symp fibers originate from?
*Spinal segments T1-L2`
What is missing above T1 and below L2?
- white ramus
What is the pathway for the sympathetic motor neuron and what are its target organs?
- spinal nerve pathway
* peripheral vessels, sweat glands, arrector pili muscles
Where do the parasympathetic motor neurons (cranial sacral division) originate from?
- cranial nerve nuclei of 3,7,9,10
* spinal segments S2-S4
What are the pathways for the parasympathetic motor neurons?
- cranial nerves 3,7,9,10
* pelvic splanchnic nerves
What are dermatomes for?
*can be used to tell if there is a problem in CNS or spinal nerves
What is an innervation of a single spinal nerve?
*dermatomes
pain caused by ______ is felt in the skin?
*viscera
What is referred pain?
*visceral pain felt in the skin
Why is visceral pain felt in the skin?
*because visceral and somatic pain project to the same spinal segment
What is a condyle?
*rounded articular area
What is a crest?
*ridge of bone
What is an epicondyle?
*eminence superior to a condyle
What is a facet?
*smooth flat area, usually covered with cartilage, where a bone articulates with another bone
What is a foramen?
*passage through a bone
What is a fossa?
*hollow or depressed area
What is a line (linea)?
*linear elevation
What is a malleolus?
*rounded prominence
What is a notch?
*indentation at the edge of a bone
What is a process?
*projecting spine-like part
What is a protuberance?
*projection of bone
What is a spine?
*thorn-like process
What is a trochanter?
*large, blunt elevation
What is a tubercle?
*small, raised eminence
What is a tuberosity?
*large, rounded elevation
What is hypertrophy?
*enlargement
What is atrophy?
*decrease in size
What is secondary inflammation of the lymphatic vessels and lymph nodes?
*lymphangitis, lymphadenitis