Homework Answers
Question:- Neuroglia cells that make myelin surrounding neurones are called microglia cells.
Sol:- False.
Explanation- Microglia cell is a types of neuroglia cell or glial cell in the CNS. It act as a immune defense cells of the CNS and phagocytose foreign and degenerated materials. And oligodendrocytes of the glial cells that make myelin sheaths around axon of the CNS.
So here statement is false about microglia cells.
Question:- External nares connect directly to the trachea.
Sol:- False
Explanation:- On the undersurface of the external nose are two openings called the external nares or nostrils. Next portion of the respiratory system is pharynx and larynx. Beyond the larynx is trachea.
So external nares is not directly connected to the trachea.
Question :- Neurons at rest have more sodium ( Na+) outside the neurone membrane than inside the neurone membrane.
Sol:- True
Explanation:- During resting stage outside of the neurone membrane have more sodium than inside the membrane.
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Neuroglia cells that make myelin surrounding neurons are called microglia cells. True False QUESTION 8 External...
Neuroglia cells will make myelin in the nervous system. True False QUESTION 17 Sodium (Na+) will...
Neuroglia cells will make myelin in the nervous system. True False QUESTION 17 Sodium (Na+) will enter the neuron just before the action potential (nerve impulse) begins. True False QUESTION 18 Neurotransmitter permits nerve impulses to go between neuron cells. True False
Hello, this is my study guide for my final test, please help me find the right...
Hello, this is my study guide for my final test, please
help me find the right answers to them.
QUESTION 1 The epiglottis directly covers the glottis found inside the larynx. True False QUESTION 2 The trachea connects to the lungs. True False QUESTION 3 The glottis blocks the opening to the respiratory passage during swallowing. True False QUESTION 4 Inhaled air goes directly into the nasopharynx. True O False QUESTION 5 Residual lung air volume is the amount of...
Efer Figure2 to answer questions 18-21: 8. produce the myelin sheaths of neurons in the central F...
efer Figure2 to answer questions 18-21: 8. produce the myelin sheaths of neurons in the central Figure 2 nervous system. 19 form the Blood Brain Barrier 20._ are responsible for neurotransmitter release. 21 have ligand gated ion channels that are activated by neurotransmitters 22. Functionally, which cellular location is the neuron's "decision- making site" as to whether or not an action potential will be initiated? A axonal membrane B. axon hillock C. dendritic membrane D. presynaptic membrane 23. Calcium and...
The brain and spinal cord make up the Select one: O a. Peripheral nervous system O...
The brain and spinal cord make up the Select one: O a. Peripheral nervous system O b. Enteric nervous system O c. Autonomic nervous system O d. Central nervous system Which type of neuroglial cells help to produce and circulate cerebrospinal fluid? Select one: O a. Microglia O b. Ependymal cells O c. Oligodendrocytes O d. Astrocytes Question 70 Not yet answered Points out of 1 P Flag question During the the process of depolarization, Select one: O a. Potassium...
need help In this 4 question please and thank you Question 10 (2 points) (True/false) During...
need help In this 4 question please and thank you
Question 10 (2 points) (True/false) During the rising phase of the action potential, the charge inside of the axon changes from negative to positive (depolarizes) True False Question 11 (2 points) (True/false) During the rising phase of the action potential, potassium channels (gates) open and allow the cell to depolarize. True False An interneuron OA) Receives excitatory or inhibitory inputs from other neurons and then can activate or not activate...
For each multiple choice, what is the answer and why? 5. Myelin A) is only found...
For
each multiple choice, what is the answer and why?
5. Myelin A) is only found in the peripheral nervous system B) is secreted from the axon terminals of autonomic neurons. C) is a carbohydrate within the membranes of some neuroglia. D) is a chemical present in the plasma membrane of neurons. E) influences the rate of conduction of an electrical signal down an axon. 6. Which of the following organs/structures is (are) innervated by somatic motor nerves? (only ONE...
True or False: The striations in skeletal muscle are formed by the arrangement of thick and...
True or False: The striations in skeletal muscle are formed by the arrangement of thick and thin filaments. 2. True or False: In skeletal muscle cells, the sarcoplasmic reticulum is continuous with the sarcolemma. 3. The interval between two Z lines is called a ________________. 4. At a neuromuscular junction, the space between the plasma membrane of the synaptic terminal and the motor end plate is the __________________. 5. An action potential (electric impulse) is transferred from a...
Hello, this is my study guide for my final test, please help me find the right...
Hello, this is my study guide for my final test, please
help me find the right answers to them.
QUESTION 25 Veins are low blood pressure vessels. True False QUESTION 26 Cappillary blood flows directly into veins. True False QUESTION 27 Both arteries and veins contain one way valves. True False QUESTION 28 Bright red blood color is expected in blood of the veins. True False QUESTION 29 Depolarized heart chamber cells would be expected to contract. True False QUESTION...
A 35 year old female presents with a history of several episodes, each separated by several...
A 35 year old female presents with a history of several episodes, each separated by several months, in which she experiences brief periods of physical weakness, clumsiness of the legs and hands, visual disturbances, and mood swings. Her weakness is most prominent in the lower extremities. CT scans show evidence of multiple lesions in the white matter of the brain and spinal cord. During her last episode, there were increasing neurological deficits due to an increasing number of disseminated lesions....
4. Development of organelles Aa Aa 3 Modern eukaryotic cells are very complex and have many...
4. Development of organelles Aa Aa 3 Modern eukaryotic cells are very complex and have many features that allow them to function efficiently. These complexities took a very, very long time to evolve and likely progressed as a series of small improvements that were naturally selected. For example, modern eukaryotic cells have internal membranes surrounding their organelles and the nucleus. This arrangement likely arose when the cellular membranes of some ancient bacterial cells accidentally folded to become internal membranes. Which...
Neuroglia cells will make myelin in the nervous system. True False QUESTION 17 Sodium (Na+) will enter the neuron just before the action potential (nerve impulse) begins. True False QUESTION 18 Neurotransmitter permits nerve impulses to go between neuron cells. True False
Hello, this is my study guide for my final test, please
help me find the right answers to them.
QUESTION 1 The epiglottis directly covers the glottis found inside the larynx. True False QUESTION 2 The trachea connects to the lungs. True False QUESTION 3 The glottis blocks the opening to the respiratory passage during swallowing. True False QUESTION 4 Inhaled air goes directly into the nasopharynx. True O False QUESTION 5 Residual lung air volume is the amount of...
efer Figure2 to answer questions 18-21: 8. produce the myelin sheaths of neurons in the central Figure 2 nervous system. 19 form the Blood Brain Barrier 20._ are responsible for neurotransmitter release. 21 have ligand gated ion channels that are activated by neurotransmitters 22. Functionally, which cellular location is the neuron's "decision- making site" as to whether or not an action potential will be initiated? A axonal membrane B. axon hillock C. dendritic membrane D. presynaptic membrane 23. Calcium and...
The brain and spinal cord make up the Select one: O a. Peripheral nervous system O b. Enteric nervous system O c. Autonomic nervous system O d. Central nervous system Which type of neuroglial cells help to produce and circulate cerebrospinal fluid? Select one: O a. Microglia O b. Ependymal cells O c. Oligodendrocytes O d. Astrocytes Question 70 Not yet answered Points out of 1 P Flag question During the the process of depolarization, Select one: O a. Potassium...
need help In this 4 question please and thank you
Question 10 (2 points) (True/false) During the rising phase of the action potential, the charge inside of the axon changes from negative to positive (depolarizes) True False Question 11 (2 points) (True/false) During the rising phase of the action potential, potassium channels (gates) open and allow the cell to depolarize. True False An interneuron OA) Receives excitatory or inhibitory inputs from other neurons and then can activate or not activate...
For
each multiple choice, what is the answer and why?
5. Myelin A) is only found in the peripheral nervous system B) is secreted from the axon terminals of autonomic neurons. C) is a carbohydrate within the membranes of some neuroglia. D) is a chemical present in the plasma membrane of neurons. E) influences the rate of conduction of an electrical signal down an axon. 6. Which of the following organs/structures is (are) innervated by somatic motor nerves? (only ONE...
Hello, this is my study guide for my final test, please
help me find the right answers to them.
QUESTION 25 Veins are low blood pressure vessels. True False QUESTION 26 Cappillary blood flows directly into veins. True False QUESTION 27 Both arteries and veins contain one way valves. True False QUESTION 28 Bright red blood color is expected in blood of the veins. True False QUESTION 29 Depolarized heart chamber cells would be expected to contract. True False QUESTION...
A 35 year old female presents with a history of several episodes, each separated by several months, in which she experiences brief periods of physical weakness, clumsiness of the legs and hands, visual disturbances, and mood swings. Her weakness is most prominent in the lower extremities. CT scans show evidence of multiple lesions in the white matter of the brain and spinal cord. During her last episode, there were increasing neurological deficits due to an increasing number of disseminated lesions....
4. Development of organelles Aa Aa 3 Modern eukaryotic cells are very complex and have many features that allow them to function efficiently. These complexities took a very, very long time to evolve and likely progressed as a series of small improvements that were naturally selected. For example, modern eukaryotic cells have internal membranes surrounding their organelles and the nucleus. This arrangement likely arose when the cellular membranes of some ancient bacterial cells accidentally folded to become internal membranes. Which...
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