Notes on Back and Nervous System

    Rahul's Noteblog     Notes on Anatomy     Notes on Back and Nervous System

• Cervical vertebrae: 7
• Thoracic vertebrae: 12
• Lumbar vertebrae: 5
• Sacral vertebrae: 5

• Nucleus pulposus: herination in posterolateral direction; may compress a nerve.
• Osteophytes: compress vertebral artery in transverse foramina and prevent blood flow to brain.
• Lumbar puncture: done through interlaminar spaces; performed at L4-L5.

• Spinal nerve = dorsal and ventral rami.
• Ventral ramus innervates skin of back and deep muscles of back, and zygopophyseal joints.
• Anterior ramus innervates anterior and lateral portions of body wall and limbs.

Meninges:
• Inner to outermost:
• Pia mater then subarachnoid space (filled with CSF) then Arachnoid then dura mater then epidural space (filled with fat + plexus of veins).
• "Ed likes to program in ASP."

Spinal tap:
• Done at level L4, which is at level of cauda equina.

ANS:
• Motor innervation of smooth, cardiac, and glands of body.
• Two types: sympathetic (thoracolumbar) and parasympathetic (craniosacral).

ANS neurons:
• Preganglionic neuron has cell body in CNS.
• Postganglionic neuron has cell body in motor ganglion in PNS.
• CNS > preganglionic fiber w/ cell body > PNS ganglion > postganglionic fiber w/ cell body > target.

Lumbar puncture layers (superficial to deep):
• Skin; superficial fascia; deep fascia; supraspinous ligament; interspinous ligament; interlaminar space; epidural space; dura; arachnoid; subarachnoid space.

Additional Notes:
• Filum terminale: composed only of pia mater; attached to tip of coccyx.
• Lumbar and sacral spine vertebrae lack costal facets.
• Hemi-vertebrae produce scoliosis.
• Knee jerk is a proprioceptive reflex of: femoral nerve.
• Hunchback: kyphosis.
• Best way to diagnose gall stones: ultrasound.
• Lower motor neurons found in: anterior horn.
• Fasciculus cuneatus begins at: T6 in spinal cord.
• Dorsal nucleus of Clarke receives group 1a and 1b fibers from lower limbs.
• Stretch reflex: type Ia and type II sensory fibers.
• Dorsal root afferents of spinal cord: medial consists of type C and lateral consists of type A.

Additional Reading:

Histology and Cytology

1. Cell Components
2. Nervous Tissue
3. Muscle Tissue
4. Lymphoid Tissue
5. Integument
6. Respiratory System
7. Gastrointestinal System
8. Renal/Urinary System
9. Male Reproductive System
10. Female Reproductive System

Gross Anatomy

1. Back and Nervous System
2. Thorax
3. Abdomen, Pelvis, and Perineum
4. Upper Limb
5. Lower Limb
6. Head and Neck
7. Chest Wall
8. Shoulder

What's New?

Recently Added Pages:	Popular Pages:
Hormonal Signaling Pathways	Notes on Heart Muscle Mechanics
Notes on Electrical Activity of the Heart	Notes on Heart Sounds and Murmurs
Notes on Diagnostic and Statistical Manual IV (DSM IV)	Major Depressive Disorder vs Dysthymic Disorder
How to Stop Feedback Form & Guestbook Spam	Pictures of old Kuwaiti Dinars
Body-Mass-Index, Waist-to-Height Ratio, Body Fat, Basal Metabolic Rate Calculator	Digestion FAQ, Defecation reflex, etc.
Notes on Basic Gastrointestinal Physiology	Inferential Statistics
Notes on Osteogenesis	What is an ELEK's Test?
Why did I decide to become a doctor? Medical School Admissions Essay	Video: Titanic Piano Theme: The Portrait
Corporate Failure: The Enron Case	My Experience during the Iraqi Invasion of Kuwait
USMLE Blood Lab Values	Regulation of Heart Rate by Autonomic Nervous System
Images of Antibodies	What is Steady State Concentration?
Generalized vs Specialized Transduction	Differentiation and Anatomy of a Blastocyst
Notes on Cell Components	Notes on Nervous Tissue

You can also keep track of updates on RahulGladwin.com by subscribing to my RSS newsfeed.

Here is a comprehensive list of all documents on RahulGladwin.com.

Please Do Not Reproduce This Page

This page is written by Rahul Gladwin. Please do not duplicate the contents of this page in whole or part, in any form, without prior written permission.

Page accessed on: September 2, 2010, 5:51 pm.

 Back to Top

Site Search

Main Menu