Dermatome (anatomy) A dermatome is an area of skin that is mainly supplied by a single spinal nerve. There are eight cervical nerves (C1 being an exception with no dermatome)‚ twelve thoracic nerves‚ five lumbar nerves and five sacral nerves. Each of these nerves relays sensation (including pain) from a particular region of skin to the brain. Along the thorax and abdomen the dermatomes are like a stack of discs forming a human‚ each supplied by a different spinal nerve. Along the arms and the
Premium Skin Immune system Blood
It is the motor equivalent of a dermatome. Each muscle in the body is supplied by a one or more levels or segments of the spinal cord and by their corresponding spinal nerves.Myotomes & Dermatomes dermatome map - Apparelyzed www.apparelyzed.com/myo-dermatomes.html Myotomes and dermatome charts & maps describe the relationship between spinal nerve ... Dermatome is a Greek word which literally means "skin cutting". ... In diagrams or maps the boundaries of dermatomes are usually sharply defined.
Premium Muscle Nerve Nervous system
Instructor: Dr. Daniel Kifle June 16‚ 2014 A Case of Spinal Cord Injury 1. Describe the functional anatomy of the spinal cord using the following terms: white matter‚ gray matter‚ tracts‚ roots and spinal nerves. The spinal cord consists of a superficial White matter and a deep Gray matter. The white matter consists of myelinated axons‚ which form nerve tracts and the Gray matter consists of neuron cell bodies‚ dendrites and axons. The white matter in each half of the spinal
Premium Spinal cord Nervous system Muscle
Spinal Cord Injury * Short Case Study #3 1. Describe the functional anatomy of the spinal cord using the following terms: white matter‚ gray matter‚ tracts‚ roots‚ and spinal nerves. * White matter is one of the two components of the central nervous system‚ and it consists of glial cells and myelinated axons that transmit signals from one region of the cerebrum to another as well as in between the cerebrum and lower brain centers. Grey matter contains neural cell bodies. Unlike
Premium Nervous system Central nervous system Neuron
Human body is not perfect‚ there are many imperfection in almost every organ system but that is what makes us and other living beings unique as well as interesting . Today we will be discussing one of such imperfections ‚ "The Referred pain" which I have called a Glitch in the Nervous system and you will know why as you read this post.And we will also be discussing its Medical implications. What is a Referred Pain? A pain which is felt at the distant site from the organ diseased but not felt at
Premium Pain Suffering Medicine
occurrence‚ the lower limbs of the patient showed no muscle contractions and she was unable to control defecation or urination. Analysis First‚ the sensory neurological levels of the patient were determined by identifying the most caudal and intact dermatome using two key sensory points‚ light touch and pin prick (Kirshblum et
Premium Spinal cord injury Spinal cord Muscle
Spinal cord injuries If the spinal cord is damaged in an accident‚ the sections below the injury will be cut off from the circuit of information to and from your brain. This means‚ all nerves - and all body parts - linked to these areas of the spinal cord will also be disconnected from your brain and will stop functioning. Well protected To minimise the risk of such an injury‚ your spinal cord is well protected: Three tough envelopes called meninges surround your spinal cord A clear fluid‚ that
Premium Spinal cord Corticospinal tract Nervous system
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) In the spinal cord‚ white matter is organized into ascending and descending tracts grouping into A) nuclei. B) nerves. C) columns. D) ganglia. E) horns. 2) Enlargements of the spinal cord occur A) adjacent to the anterior median fissure. B) in the filum terminale. C) near the posterior median sulcus. D) in segments of the spinal cord that control the limbs. E) in the thoracic
Free Spinal cord
Martini: Fundamentals of Anatomy & Physiology 9th Edition Chapter 13 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The spinal cord is part of the A) peripheral nervous system. B) somatic nervous system. C) central nervous system. D) autonomic nervous system. E) afferent nervous system. Answer: C 2) The ________ is a strand of fibrous tissue that provides
Free Spinal cord Nervous system
SENSORY ORGANS Introduction The knowledge of the world around us stimulates our sensory organs to provide us with the information of what is going on around us. All sensory information is picked up by the sensory receptors‚ specialised cells that monitor internal and external conditions. Examples of sensory organs are: SENSE ORGAN Eye Ear (Organ of Corti) Ear (Semicircular Canals) Ear (utricle and saccule) Olfactory mucous membrane Taste Buds Skin Skin Skin Skin Various Muscle Spindle Golgi tendon
Premium Action potential Neuromuscular junction Skeletal muscle