Fig Glossopharyngeal nerve transmits signals to medulla oblongata. Integrating center. Receptor. Baroreceptors sense increased blood pressure

Transcription

1 Fig. 5. Integrating center Glossopharyngeal nerve transmits signals to medulla oblongata Receptor 3 Vagus nerve transmits inhibitory signals to cardiac pacemaker Baroreceptors sense increased blood pressure Internal carotid artery Effector 4 Heart rate decreases

2 Fig. 5. Somatic efferent innervation Myelinated fiber Somatic effectors (skeletal muscles) Autonomic efferent innervation Myelinated preic fiber or NE Unmyelinated postic fiber Visceral effectors (cardiac muscle, smooth muscle, glands) Autonomic

3 Table 5. 3

4 Fig. 5.4 Eye Nasal glands Pons Salivary glands Preic s Postic s Regions of spinal cord Cervical Thoracic Lumbar Sacral Carotid plexuses Cardiac and pulmonary plexuses Celiac Heart Lung Superior mesenteric Liver and gallbladder Stomach Spleen Pancreas Postic fibers to skin, blood vessels, adipose tissue Inferior mesenteric Small intestine Large intestine Sympathetic chain ganglia Rectum Adrenal medulla Kidney Ovary Uterus Penis Scrotum Bladder 4

5 Fig. 5.5 Soma of preic To iris, salivary glands, lungs, heart, thoracic blood vessels, esophagus Somatic motor fiber Sympathetic nerve Spinal nerve Preic sympathetic fiber Postic sympathetic fiber To somatic effector (skeletal muscle) Preic Postic Somatic Soma of somatic motor Splanchnic nerve Collateral Postic sympathetic fibers 3 White ramus Gray ramus To sweat glands, piloerector muscles, and blood vessels of skin and skeletal muscles Soma of postic Sympathetic trunk Communicating rami To liver, spleen, adrenal glands, stomach, intestines, kidneys, urinary bladder, reproductive organs Sympathetic 5

6 Table 5. 6

7 Fig. 5.6 Diaphragm Esophagus Adrenal medulla Adrenal cortex Celiac ganglia (b) Adrenal gland Celiac trunk Renal plexus First lumbar sympathetic Aortic plexus Superior mesenteric Superior mesenteric artery Kidney Inferior mesenteric artery Inferior mesenteric Aorta Pelvic sympathetic chain (a) 7

8 Fig. 5.7 Pterygopalatine Preic s Postic s Oculomotor n. (CN III) Facial n. (CN VII) Ciliary Submandibular Otic Lacrimal gland Eye Submandibular salivary gland Glossopharyngeal n. (CN IX) Parotid salivary gland Vagus n. (CN X) Cardiac plexus Heart Regions of spinal cord Cervical Thoracic Pulmonary plexus Esophageal plexus Lung Lumbar Sacral Celiac Abdominal aortic plexus Stomach Liver and gallbladder Spleen Inferior hypogastric plexus Pelvic splanchnic nerves Pancreas Kidney and ureter Transverse colon Descending colon Small intestine Rectum Pelvic nerves Ovary Uterus Penis Scrotum Bladder 8

9 Table 5.3 9

10 Fig. 5.8 (a) Parasympathetic fiber Nicotinic receptor Target cell Preic Postic Muscarinic receptor (b) Sympathetic adrenergic fiber Nicotinic receptor Target cell Preic Postic NE Adrenergic receptor (c) Sympathetic cholinergic fiber Nicotinic receptor Target cell Preic Postic Muscarinic receptor 0

11 Table 5.4

12 Fig. 5.9 Brain Parasympathetic fibers of oculomotor nerve (III) Superior cervical Sympathetic fibers Ciliary Spinal cord Cholinergic stimulation of pupillary constrictor Iris Adrenergic stimulation of pupillary dilator Pupil Sympathetic (adrenergic) effect Parasympathetic (cholinergic) effect Pupil dilated Pupil constricted

13 Fig. 5.0 Artery Sympathetic nerve fiber Strong sympathetic tone Vasomotor tone 3 3 Smooth muscle contraction Vasoconstriction (a) Vasoconstriction Weaker sympathetic tone 3 Smooth muscle relaxation 3 Vasodilation (b) Vasodilation 3