Biology
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Biology
Cranial nerves: Types, innervations and functions
| Name | Types of fibre | Organs innervated | Functions |
| 1. Olfactory | Sensory | Olfactory mucus membranes | Smell |
| 2. Optic | Sensory | Retina | Vision |
| 3. Oculomotor | Motor | Eyeball muscles | Eyeball movement, control ciliary muscles, tear gland |
| 4. Trochlear | Motor | Eyeball muscles | Eyeball movement |
| 5. Trigeminal | Mixed | Skin, oral mucosa, muscles of head, face, mouth | Cutaneous sensation, muscle movement |
| 6. Abducens | Motor | Eyeball muscles | Eyeball movement |
| 7. Facial | Mixed | Taste buds, salivary glands, facial and neck muscles | Taste, salivation, movement, tear secretion, |
| 8. Vestibulo-cochlear (auditory nerve) | Sensory | Internal ear | Hearing, equilibrium |
| 9. Glosso-pharyngeal | Mixed | Pharynx, salivary glands, tongue | Taste, salivation, swallowing |
| 10. Vagus | Mixed | Pharynx, respiratory tract, heart, pancreas, alimentary canal, blood vessels | Gastric and pancreatic secretion, cardiac slowing, gastro-intestinal movement, respiratory reflexes, vasomotor reflexes |
| 11. Spinal accessory | Motor | Neck & shoulder muscles, thoracic and abdominal viscera | Muscle movements, visceral reflexes |
| 12. Hypoglossal | Motor | Muscles of the tongue | Tongue movements |
- Reflex Arc Consists Of
A) Sensory nerve B) Motor nerve C) Both sensory and motor nerve D) None of these The correct answer is: C) Both sensory and motor nerve...
- #115 Control And Co-ordination In Mammals, The Nervous System
Humans, like all living organisms, can respond to changes in the environment and so increase survival. Humans have 2 control systems to do this: the nervous system and the endocrine (hormonal) system. The human nervous system controls...
- Fetal Pig Anatomy Glossary ( I Suggest You Use Ctrl F)
Structure System Primary tissues Functions Pituitary Endocrine Glial cells, bundles of axons, cidophils, basophils and chromophobes cells Secretes hormones, assists other endocrine gland Medulla ...
- Central Neural System (cns) - Brain And Spinal Cord
CENTRAL NEURAL SYSTEM (CNS)Central neural system consists of 2 parts: Brain and Spinal cordA. BRAINIt is protected in cranial cavity. It has 3-layered connective tissue membranes (outer dura mater, middle arachnoid mater and inner pia mater) called cranial...
- Neural Control And Co-ordination
NERVOUS (NEURAL) SYSTEM- Controls and coordinates the body activities. - Conducts and integrates the information.- Responses to stimuli. NeuronNeuron is the structural and functional...