Question 30 1 pts While walking barefoot along the beach, you step on a shard of glass and reflexively lift your injured foot. Which path did the reflex to lift your foot take? O Motor nerve → spinal cord → brain → spinal cord → sensory nerve → skeletal muscle Sensory nerve → spinal cord → brain → motor nerve → skeletal muscle O Sensory nerve → spinal cord → motor nerve → skeletal muscle O Sensory nerve → motor nerve → spinal cord → brain

Q: Myelinated axons: Are able to transmit signals faster than unmyelinated axons Are relatively rare…

A:

Q: What is the molecular explanation for the observation that the I band appears to shorten in a muscle…

A: The basic contractile unit of muscle fibre is the sarcomere. Each sarcomere is made up of two…

Q: Which of this muscle is found in heart? O cardiac muscle O smooth muscle O skeletal muscle

A: Muscles are in the form of contractile fibres varying in lengths and form muscular tissue. The…

Q: Which one below does not describe normal age-related changes in the skeletal system?     Loss of…

A: Every skeletal structure loses bone density after a certain age. Most cases happen to age-related…

Q: QUESTION 16 Which of the following term does not fit with smooth muscle? O A. Fusiform O B. Dense…

A: The objective of the question is to identify the term that does not associate with the…

Q: QUESTION 2 In an electrical synapse: Neurotransmitter release triggers the opening of ion channels…

A: A synapse is a connection between one neuron's axon terminal and the dendrite of the next neuron.…

Q: Question 10 Which is/are initiated in the axon hillock? O action potential O graded potential O both…

A: An action potential arises, voltage-gated sodium channels open to a quick depolarization in the…

Q: Short term facilitation may be due to: Increases in the amount of Na that enters the cell Short term…

A: Neural facilitation, also known as STF (Short term facilitation) is a phenomenon in neuroscience in…

Q: If a skeletal muscle is no longer able to make enough ATP, then: There will be low levels of…

A: ATP is essential for muscle contraction. When ATP is lacking, it affects the cross-bridge cycling…

Q: Question 25 Sympathetic effect on the heart is: Decreased rate, decreased force of contraction…

A: The sympathetic nervous system is one of the two divisions of the autonomic nervous system found in…

Q: QUESTION 8 What are 'silent synapses? Synapses with only AMPARS in their postsynaptic surface…

A: The site of contact between two nerves is known as a synapse. There are electrical synapses and…

Q: QUESTION 10 Which of the following is not a phase of muscle contraction? O A. Excitation O B.…

A: The question is asking us to identify which of the given options is not a phase of muscle…

Q: What is occurring during the repolarization phase of an action potential? O Voltage-gated…

A: Answer. All cells have an electrical potential difference, or membrane potential, across the plasma…

Q: Which of the following is not a method for removing neurotransmitter from the synaptic cleft?

A: Neurotransmitters chemical stimulus that is transmitted from one neuron to the other until the…

Q: QUESTION 4 In the resting state: voltage-gated Na+ and K+ channels are both closed voltage gated Na+…

A: Voltage-gated ion channels:  a type of transmembrane proteins that results in formation of ion…

Q: QUESTION 13 Which radiotracer is used in a bone scan? OA Fluorine-18 fluorodeoxyglucose O B.…

A: The chemical compound in which replacement of one or more atoms occurs by a radionuclide is called…

Q: The ____ detect changes in muscle length; the _____ signal changes in muscle tension     A. Golgi…

A: The sliding filament theory is given for explaining the mechanism of contraction and relaxation in…

Q: QUESTION 4 Which of the following is part of the central nervous system? Neurons that transmit…

A: The nervous system comprises the brain, spinal cord and nerves. It transmits electrochemical signals…

Q: Question 29 Which of the following does NOT describe the autonomic nervous system? O It controls…

A: Nervous system is calssified in the following manner:

Q: How does synaptic transmission between neurons occur?

A: In a chemical synapse, the pre and post synaptic membranes are separated by a synaptic cleft, a…

Q: Which of these pairs of cranial nerves have to do with the sense of taste? O Trigeminal and…

A: Cranial nerves are referred to as the pairs of 12 hrs that originate from the brain. These nerves…

Q: QUESTION 4 Thin filaments are composed of O A. Calcium; Sodium OB. Myosin; actin O C. Sodium;…

A: Thin filaments in muscle fibers are composed of actin, which is a globular protein that forms long…

Q: Question 10 Which of the following is NOT true? O A neurotransmitter's affects at the synapse are…

A: Introduction: Neurotransmitters are chemical messengers that your body requires to function.…

Q: Which of the following is false? O alpha receptors cause smooth muscle to contract O Beta receptors…

A: G protein-coupled receptors such as muscarinic, beta, and alpha receptors are involved in…

Q: Question 37 The Sarcoplasmic Reticulum is: OA. The basic contractile unit in skeletal muscle O B.…

A: Sarcoplasmic reticulum It refers to a membrane-bound structure constituting a network of tubules…

Q: QUESTION 2 During muscle relaxation, calcium returns to the sarcoplasmic reticulum via: Calcium…

A: Sarcomeres are the fundamental functional units of the muscle cell, which helps in contraction and…

Q: QUESTION 32 From where are enkephalins, endorphins and dynorphins known to be released?   A.…

A: Enkephalins are defined as small peptides that can serve or play the role of neurotransmitters in…

Q: An ultrasound wave bounces off a bone in a human body and back to the transducer in 3.1E-5 s. How…

A: A sound wave is the pattern of disturbance caused by the movement of energy as it propagates away…

Q: patient. What are some other cases in which having a lot of empathy might not be as usetul for…

A: Empathy is the  ability to understand how another person is feeling and so, know his or her mood.

Q: Rods and cones in the eyes are: O Unipolar neurons O Multipolar neurons O Bipolar neurons O…

A: The rods and cons are specialized cells that are present in the retina of the eye, and these cells…

Q: QUESTION 6 At the neuromuscular junction, a neurotransmitter called open, allowing an influx of OA.…

A: The question is asking about the specific neurotransmitter and ion involved in the process of muscle…

Q: QUESTION 13 Which of the following are not criteria for a substance to be detined as a…

A: Note: We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: Match each glial cell with its function + Schwann cells A. Help circulate cerebrospinal fluid *…

A: 1. B.Form myelin in the PNS 2. A Help circulate cerebrospinal fluidi

Q: QUESTION 6 A muscle organ shortens during: eccentric contraction O isometric contraction O…

A: According to our guidelines we can answer only the first three supbarts of a question. So, upload…

Q: What occurs when the sarcomere length of skeletal muscle is reduced beyond the length w optimum…

A: Skeletal muscle contains connective tissue surrounding the muscle fibers and have their blood supply…

Q: Question 8 Your body contains various types of connective tissue, each having a specific function.…

A: Tissue is a part of structural organization of body which is composed of numerous cells Types of…

Q: Question 21 Which of the following correctly describes Summation ? O is the release of…

A: Summation means integrating or adding the impulses together. It may occur when several electrical…

Q: Which of these processes need ATP most? O Detachment of myosin head O Release of calcium O None of…

A: Contraction of muscles is controlled by two important proteins, actin and myosin.  In muscle cells,…

Q: QUESTION 5 If calcium ions are removed from the fluid surrounding a pre-synaptic neuron, then the…

A: Neurons are the components of the nervous system that are responsible for the generation and…

Q: What is the basic functional unit of a myofibril? a. endomysium b. sarcomere c. muscle fiber d. gap…

A: Muscles are specialized tissues which play an important role in body movement along with bones. They…

Q: Long Answer Essay You are seeing a patient in your office with a primary complaint of excessive…

A: The most common causes of excessive daytime sleepiness are sleep deprivation, obstructive sleep…

Q: "When a muscle develops increased tension, but does not shorten, it is said to exhibit" O isotonic…

A: Muscle contraction is the development of tension in the muscle fibers. It can be described with two…

Q: QUESTION 5 Which of the following is not a function of skeletal muscle? O A. Facilitate the movement…

A: The question is asking us to identify which of the given options is not a function of skeletal…

Q: Immediately after an action potential has peaked, which of the following channels will open?

A: A neuron will accept feedback from other neurons and transmit the signal to downstream neurons if…

Q: Question 28 After the depolarization phase of an action potential, the resting potential is restored…

A: The neurons have the capability to generate and transmit electrical impulses in our body. These…

Q: QUESTION 12 As your body becomes cold cells in your skin determine the change and send a signal to…

A: The question is asking us to identify the role of the hypothalamus in the body's response to cold…

Learning and memory

Learning is defined as a relatively permanent and irreversible adaptive change in behavior. It always results from experience. The ability of an organism to store and recall the effects, sensations, and knowledge gained through learning and experience is called memory.