Essays on Efferent

Problem statement for research purpose: Hypertension can be a cause as well as a consequence of chronic kidney disease (CRD). A number of clinical studies have identified the harmful effects of uncontrolled hypertension on the kidney function (Kokubo, 2012; Berlowitz, 2016)). According to NIH statistics, 23.3% individuals without CKD had hypertension in a representative sample. On the other hand, 35.8% of individuals in stage 1, 48.1% in stage 2, 59.9% of stage 3 and 84.1% in stage 4-5 CKD had hypertension (National Institutes of Health, 2010). In stage 4 CKD, the glomerular filtration is the lowest at <15 ...

Vestibular Projections

Vestibular projections in the central nervous system consist of vestibular end organs which communicate with the brain stem and the cerebellum via the vestibular branch of the eighth cranial nerve. These nerves are also connected to the auditory fibers. Thus damage caused to these structures can cause both vestibular and auditory disturbances. The vital function of the vestibular system is to coordinate head and eye movements. The ability of the eye to stay focused on an object even while the head is moving is brought about by the vestibular system.

Vestibular Cochlear Nerve

The vestibulo cochlear nerve or the auditory nerve is ...

Cranial nerves refer to the nerves that emerge from the brain directly. This is in contrast to the spinal nerves that come from spinal cord segments. There are 12 pairs of cranial nerves in human and only the both the first and the second cranial nerve pairs originate from cerebrum. All the other pairs originate from the brainstem. Other than the cranial nerve II, all the other cranial pairs belong to the peripheral nervous system (PNS). The cranial nerve ganglia come from the central nervous system (CNS) (Patestas and Gartner).

The seventh pair of cranial nerves is the ...

Introduction

Hypertension due to unknown cause or rather essential hypertension is responsible for an estimated 95% of the reported cases of hypertension. Its trend is seen in families and can be categorized as one of the genetically acquired or inheritance diseases. Numerous pathophysiological are said to causes hypertension with several experiments and research carried out to establish solid evidence. Sympathetic nervous system is one of the factors considered due to its effect on cardiovascular activities in the human body.

Blood pressure

Blood pressure is mainly as a result of vascular resistance and output of the cardiac muscles. All these actions on the human ...

Blood Pressure, Hypertension and the Nervous System

Cardiovascular activities within the human body are generally facilitated by the regulation of the sympathetic and parasympathetic afferent and efferent nerve fibers. Blood pressure is the relationship between the vascular resistance and the amount of blood that the heart pumps per minute (i.e. cardiac output). Cardiac output is affected by the following factors: end-diastolic volume, cardiac muscle contraction, and heart rate. While the sympathetic nervous system controls the blood volume and the tone of venous smooth muscle (determinants of end-diastolic volume) alone, the myocardial contraction and heart rate is controlled by both sympathetic and parasympathetic regions of the autonomic ...

The inside preoptic place (mPOA) of the hypothalamus gland is involved in the control of two essential and normally fulfilling behaviors: sex-related and expectant mothers’ actions. Medication of abuse apply their results by taking advantage of organic neurobiological compensate systems, especially the mesolimbic dopamine (DA) program. However, the mesolimbic program does not function in solitude, and feedback from other reward-relevant components is factors in cocaine's fulfilling results. Appropriate behaviors reactions to organic compensate are necessary for success and reproduction success. To this end, neurobiological compensate systems have progressed to strengthen actions such as sex-related communications and parent care. However, ...

Red blood cells take approximately 120 days to be produced. The process of its production is called erythropoiesis and the place of production is myeloid tissue. For the formation of red blood cells, the haemocytoblast must be present. The existence of Multi-CSF causes the haemocytoblast to progress into progenitor cells. The progenitor cells, on the other hand, will form other cells. This cell may also develop into proerythroblast when EPO is present. Proerythroblast forms basophilic erythroblast which will in turn develop into polychromatophilic erythroblast, followed by normoblast which develops into reticulocyte which eventually becomes erythrocyte. All these developments must ...