Basics/Lymphatics/Vasculature/Body Cavities Flashcards
When sensory information comes to the spinal cord from one area of inflammation/injury but is interpreted by the CNS as arising from another location
Referred pain
Collection of nerve cell bodies outside the CNS
Ganglion
Collection of nerve cell bodies within the CNS
Nucleus
Axons connecting nuclei in the CNS
Tract
Name the layers of tissue between the brain and the skull, going from outside —> in.
Dura mater
Arachnoid
Pia Mater
Which tissue layer is inflamed with meningitis?
Arachnoid
What is the order of the emerging nerve structures from the spinal cord?
Rootlets —> Root —> (Dorsal root ganglion) —> spinal nerve —> Ramus
Which spinal nerves rise above their vertebral levels?
C1-C7
Which spinal nerves rise below their vertebral levels?
C8-Co1
Integrates organ systems in the body; both motor and sensory components
Visceral division of the nervous system
Sensory fibers going into the spinal cord
Afferent
Motor fibers come out of the spinal cord
Efferent
Convey PRESYNAPTIC fibers to the sympathetic chain; lateral
White rami communicans
Convey POSTSYNAPTIC fibers to the sympathetic chain; medial
Gray rami communicans
What are the 3 layers of vessels? What are their functions?
Tunic intima - responsible for secreting signals that control tone and can also secrete inflammatory signals
Tunic media - muscular layer
Tunic adventitia - blood vessels of the blood vessels
Veins surrounding arteries flatten when artery expands, pumping venous blood back to the heart
Arteriovenous pump
Muscle contraction assists venous return
Musculovenous pump
Drains lymph from the body’s upper right quadrant
Right lymphatic duct
Drains lymph from the whole body (except the right upper quadrant
Thoracic duct
Where do the right lymphatic duct and thoracic duct drain into?
Right lymphatic duct —> right venous angle
Thoracic duct —> left venous angle
What are the different parts of a blastocyst?
Outer cell mass/trophoblast
Blastocyst cavity
Inner cell mass/embryoblast
What does the ectoderm form? Mesoderm? Endoderm?
Ectoderm - epidermis, neurons
Mesoderm - muscle, RBCs
Endoderm - GI + respiratory, viscera
What parts of the spine exhibit kyphosis?
Thoracic
Sacral
What parts of the spine exhibit lordosis?
Cervical
Lumbar
What are the true ribs? False? Floating?
True: 1-7 (attach directly to sternum)
False: 8-10 (don’t attach to sternum)
Floating: 11-12
3 parts of the sternum
Manubrium
Body
Xiphoid process
At what rib level is the Angle of Louis located at? What is it the landmark for?
Rib 2
T4/T5
The 3 articulating surfaces of the manubrium
Sternal angle
Clavicular notch(s)
Jugular notch
Action of the intercostal muscles/spaces
Elevate and depress ribs
What are the 3 intercostal muscles and what are their fiber orientations?
External intercostals - “hands in front pocket”
Internal intercostals - “hands in back pocket”
Innermost intercostals - parallel
At what level is the transumbilical line?
L3/L4
What is the transtubular line a landmark for?
L5
What are the boundaries of the anterior abdominal wall?
Superior: costal margin
Inferior: inguinal ligament + pelvis bones
Name the layers of the anterior abdominal wall, starting from skin and moving in.
Skin Camper’s fascia (fat) Scarpa’s fascia (membranous) External obliques Internal obliques Transversus abdominus Transversalis fascia Fat Parietal peritoneum
Which muscle connects to the rectus sheath?
External obliques
What is the midline of the rectus abdominus muscle? What about the transverse lines?
Linea alba
Intertendinous band