Organs/Parts of the Frog's Nervous System Main Function/s 1. Cerebrum 2. Olfactory lobe 3. Cerebellum 4. Thalamus 5. Optic lobe 6. Medulla oblongata 7. Pineal body 8. Vagus nerve 9. Spinal cord 10. Sciatic plexus nerves
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Complete the table below regarding the structures and functions of the organs of the frog's nervous system.
| Organs/Parts of the Frog's Nervous System | Main Function/s |
|
1. Cerebrum |
|
|
2. Olfactory lobe |
|
|
3. Cerebellum |
|
|
4. Thalamus |
|
|
5. Optic lobe |
|
|
6. Medulla oblongata |
|
|
7. Pineal body |
|
|
8. Vagus nerve |
|
|
9. Spinal cord |
|
|
10. Sciatic plexus nerves |
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- Label the Spinal nerves of the toadCorrectly identify and label the structures associated with the anatomy of a ganglion. Sensory nerve fibers Posterior root ganglion DOW Blood vessels Interneurons Somatosensory neurons Motor nerve fibers Posterior rootlets Reset Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction display. Direction of signal transmission Zoom ooooooo To spinal cord To peripheral receptors and effectorsMI ZUN Match the following columns. Column A Column B 1. Skull a. centre of the nervous system 2. Nerve cells b. protected by the backbone 3. Spinal cord C. involves only nerves and spinal cord 4. Brain d. thread-like structures 5. Reflex action e. protects the brain In the following word search grid, names of different parts of the nerw system and sense organs are hidden. Find them vertically and horizon and mark them. One has been done for you. A R B YES T. Y MO H. E S Y H.
- Fill in the blanks: 1. The coordinates actual with intended movements. 2. The plays a major role in maintaining homeostasis by controlling the autonomic nervous system, secreting hormones that control the pituitary gland and regulating behaviors such has feeding, thirst and sexual arousal is the part of the brain that helps maintain posture and balance. It also is a raised area or convolution on the surface of the cerebrum 3. A 4. The is a collection of structures that are collectively called the "emotional brain". area is the primary motor area associated with speech and is found predominantly in the left cerebral hemisphere. 6. The disorder of 7. Impaired blood flow to the brain causing temporary impairment of function is called a 5. is associated with Parkinson's disease. 8. The regulates vital functions such as heart and respiration rate as well as nonvital functions such has hiccupping and sneezing. 161Match the term to its description by writing the appropriate letter in the space. ___1. Lateral inhibition ___2. Ganglion cells ___3. Lateral geniculate nucleus ___4. Superior colliculus ___5. End-stopped cells ___6. Bipolar cells ___7. Complex cells ___8. Selective adaptation ___9. Selective rearing ___10. Accommodation ___11. Horizontal cells ___12. Simple cells A. Area responsible for controlling eye movements B. Respond best to moving bars of a specific orientation C. The axons of these form the optic nerve D. Results in decreased sensitivity to the exposed stimulus E. Where visual information travels before reaching V1 F. Signals transmitted across a nerve circuit G. Respond best to bars of a particular orientation H. When the lens changes shape to focus I. Carry inhibitory signals between bipolar cells J. Long-term exposure to an environment resulting in neural plasticity K. Respond best to corners or lines of a particular length L. Receive signals from rods and conesIdentify the structures on the diagram. Dorsal rootlets Myelinated axon Mixed spinal nerve Efferent nerve fibres exit the spinal cord via v roots The mixed spinal nerve passes through which foramen as it exits the CNS to enter the PNS? В. C-. A L -K E -K Adapted from original image Copyright OThe McGraw-Hill Companies, Inc.
- Respond to the following statements in reference to the five regions of the vertebrate brain listed below. This region connects the spinal cord to the midbrain. This region functions in homeostasis. This region governs abstract thought. This region is used for spatial orientation. This region relays signals between the spinal cord and pons. a. Cerebrum b. Hypothalamus C. Pons d. Cerebellum e. Medulla oblongataMatch the concept with the correct section of the nervous system. 1 + Central nervous system 1. Consists of the brain and spinal cord 2. Responsible for sending sensory + Autonomic nervous system messages to the CNS and sending motor messages to muscles and glands + Parasympathetic nervous system 3. Responsible for voluntary control: sense receptors send messages to the CNS and + Peripheral nervous system impulses travel from the CNS to effectors (muscles) • Sympathetic nervous system 4. Responsible for involuntary control: controls glandular secretions (enzymes + Somatic nervous system and hormones) and the function of smooth and cardiac muscles 5. Activated in emergencies and in times of stress 6. Activated when the body is calm, at rest, and digesting a mealLabel the parts of Planaria (whole mount) Locate the anterior and posterior ends. Note the lobe like- auricles which are lateral extensions of the head, pharynx, mouth and intestine. Determine the eyes, cilia, pigment granules and flame cells. Look for the 2 ventral nerve cords near the mid- ventral line
- The following is incorrect regarding the peripheral nervous system: Select one: a. The autonomic nervous system consists of sympathetic and parasympathetic divisions Ob. The spinal nerves are 31 pairs and originate from the spinal cord c. The cranial nerves are 12 pairs and supply structures in the head and neck d. The sympathetic nervous system stimulates the heart and the digestive system Next page Gen CPit F4 F5 EZMatch each description with the appropriate cranial nerve in the diagram shown below 1. Carries commands to the eyes — to muscles that move the eyes or control pupil size and lens shape: 2. Carries commands to an extraocular eye muscle, the superior oblique muscle: 3. Carries commands to an extraocular eye muscle, the lateral rectus muscle: 4. Carries information from olfactory receptor cells in the nose: 5. Carries commands to muscles of facial expression (orbicularis oculi, etc.) and to glands, and carries information from taste buds in the tongue: 6. Carries commands to a pharyngeal muscle and gland, and carries information concerning taste or touch in the oral cavity and pharynx: 7. Splits into three branches; carries commands to the muscles of mastication (temporalis, etc.) and information from facial skin: 8. Carries commands to the tongue: 9. Carries commands to, and information from, many internal organs: 10. Carries information from…Match the two main anatomical divisions of the nervous system with the structures or descriptions. DDD NOD ganglion nerve brain spinal cord nucleus tract dispersed throughout the body contained within the cranial cavity and vertebral cavity 1. Central nervous system (CNS) 2. Peripheral nervous system (PNS)
