In this article we will discuss about the definition and properties of reflex. Definition of Reflex: A reflex is defined as automatic/involuntary, stereotyped/repetitive, purpose serving or goal oriented response for afferent stimulation which can be internal or external. For any reflex action to be brought about, basic reflex arc should be intact. The components of basic reflex arc are (Fig. [...]
In this article we will discuss about:- 1. Composition of CSF 2. Circulation of CSF 3. Functions. Composition of CSF: 1. Clear, colorless, transparent fluid 2. Alkaline in nature 3. Around 0.3 ml of CSF is produced/min 4. Specific gravity 1.005 5. Water—99.13% 6. Solids—0.87 % 7. K+ = 3.00 mEq, whereas plasma has 5.0 mEq 8. CI- = 114.0 [...]
The human spinal cord is made up 31 segments. From each of these segments, a pair of spinal nerves takes origin. Hence there are 31 pairs of spinal nerves. Of 31 pairs: i. 8 belong to cervical segments ii. 12 belong to thoracic segments iii. 5 belong to lumbar segments iv. 5 belong to sacral segments v. 1 belongs to [...]