Section I – Multiple choice: (65 points; 2.5 points each). Bubble your answers on your scantron. 1. A motor unit refers to a. a single muscle fiber plus all of the motor neurons that innervate it b. all of the motor neurons supplying a single muscle c. *a single motor neuron plus all the muscle fibers it innervates d. a pair of antagonistic muscles e. all of the muscles that affect the movement of any given joint 2. Which of the following is NOT associated with the thin filaments
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The twelve cranial nerves include the olfactory nerve‚ optic nerve‚ oculomotor nerve‚ trochlear nerve‚ trigeminal nerve‚ abducens nerve‚ facial nerve‚ vestibulocochlear nerve‚ glossyopharyngeal nerve‚ vagus nerve‚ accessory nerve‚ and the hypoglossal nerve. Each nerve functions as sensory‚ motor‚ or both sensory and motor. Moreover‚ both the optic nerve and the trigeminal nerve carry sensory information from the eyes to the brain (Marieb & Hoehn‚ 2014‚ p.495). Meanwhile‚ the nerves that carry motor
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skull. The contents of the pterygopalatine fossa include The terminal portion of the maxillary artery; The pterygopalatine ganglion; The maxillary division of the trigeminal nerve; and branches of these structures. Maxillary Artery The third‚ or pterygopalatine portion‚ of the maxillary artery enters the pterygopalatine fossa from the infratemporal fossa via the pterygomaxillary fissure | Maxillary artery and its
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a false truth to the word nerve. The courage it takes to have nerve is powerful‚ but having nerves is a weakness. A soldier in a battle needs confidence‚ and not worry or otherwise every action will be filled with doubt. The commander says‚ “No nerves‚ just have nerve out there.” The difference between the same word emphasizes the actual meaning of each word‚ creating it to be more heroic than a hero and braver than just the brave. One of the many definitions for nerve is “a person’s steadiness
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EXERCISE 3: Neurophysiology of Nerve Impulses |ACTIVITY 1: The Resting Membrane Potential |Answers | |The nervous system contains two general types of cells: neuroglia cells and |C- Neurons | |nerves. |
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1) The brain and spinal cord comprise the _____ nervous system. A) autonomic B) peripheral C) central D) efferent E) afferent 2) Voluntary control of skeletal muscles is provided by the _____ nervous system. A) sympathetic B) parasympathetic C) afferent D) somatic E) autonomic 3) The part of the peripheral nervous system that brings information to the central nervous system is A) motor. B) afferent. C) efferent. D) autonomic. E) somatic. 4) The myelin sheaths that surround the axons of some of the
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Neurophysiology has been a subject of study since as early as 4‚000 B.C. In the early B.C. years‚ most studies were of different natural sedatives like alcohol and poppy plants. In 1700 B.C.‚ the Edwin Smith surgical papyrus was written. This papyrus was crucial in understanding how the ancient Egyptians understood the nervous system. This papyrus looked at different case studies about injuries to different parts of the body‚ most notably the head. Beginning around 460 B.C.‚ Hippocrates began
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term "myotome" is also used to describe the muscles served by a single nerve root. 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".
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1. (5 pts) Describe the metabolic process providing your energy while you were walking (at an easy pace) before the bee stung you. Include which molecules are being consumed. The metabolic process providing my energy while I was walking at an easy pace is aerobic metabolism. During aerobic metabolism‚ mitochondria absorb from the surrounding cytoplasm these molecules: ADP‚ phosphate ions‚ O2‚ and organic substances like pyruvate. These molecules go through the citric acid cycle. The electron
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Optic Nerve The optic nerve is located in the back of the eye and is also called second cranial nerve and cranial nerve II. the optic nerve is to transfer visual information from the retina to teh vision centres of the brain via electrical impulses. It is made up of ganglionic cells or nerve cells and consists of more than 1 million nerve fibres . Our blind spot is caused by the absence of specialised photosensitive/light-sensitive cells or photoreceptors; the part of the retina where the optic
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