Homework Answers
Junction fold - The thickened portion of muscle plasma membrane (sarcolemma) that is folded to form depressions.
Synaptic cleft- Space between neurons or a neuron and a muscle cell membrane across which a nerve impulse is transmitted by a neurotransmitter
Calcium channels- allow influx of Ca ions which help in releasing neurotransmitters.
Muscle fiber- the muscle to which the signal is sent
Acetylcholine- Chemical that motor neurons of the nervous system release in order to activate muscles.
Ligand channels - The receptor of acetylcholine in muscle fibers
Motor neuron - nerve cell which carries signals to muscle cell.
Synaptic vesicles - stores various neurotransmitters that are released at the synapse. The release is regulated by a voltage dependent Calcium channels.
Arrival of nerve impulse - Nerve impulses , coming because of electrical changes in the nerve membrane , which causes release of neurotransmitters into synaptic cleft.
Add Answer to:
Label the picture of a neuromuscular junction: Junctional fold, synaptic cleft, calcium channels, muscle fiber, acetylcholine...
Label the picture of a neuromuscular junction: Junctional fold, synaptic cleft, calcium channels, muscle fiber, acetylcholine...
Label the picture of a neuromuscular junction: Junctional fold, synaptic cleft, calcium channels, muscle fiber, acetylcholine (neurotransmitter), ligand- channels, motor neuron, synaptic vesicles, and arrival of nerve impulse (AP) Ca2+
Choc Muscle fiber nucleus Myofibrilot muscle fiber Figure 10.15. Details of the neuromuscular junction. Label the...
Choc Muscle fiber nucleus Myofibrilot muscle fiber Figure 10.15. Details of the neuromuscular junction. Label the structures labeled with capital letters. The numbers 1-4 indicate the chain of events that occur at the neuromuscular junction. Put these events in chronological order by placing a l in the blank before the first event, etc. Refer back to Figure 10.15 for information. Acetylcholine diffuses across the synaptic cleft. Nerve impulse reaches the axon terminal. Synaptic vesicles release acetylcholine into the synaptic cleft....
Consider the neuromuscular junction between a pre-synaptic neuron and the diaphragm muscle. Acetylcholine is a neurotransmitter...
Consider the neuromuscular junction between a pre-synaptic neuron and the diaphragm muscle. Acetylcholine is a neurotransmitter that is released from the presynaptic neuron to induce muscle contraction in the post-synaptic muscle cell. Which of the following would be an effect of tetrodotoxin? A. More acetylcholine in the synapse of the neuromuscular junction with the diaphragm B. Less acetylcholine in the synapse of the neuromuscular junction with the diaphragm
Put these steps in neuromuscular junction synaptic transmission and excitation-contraction coupling in chronological order. A. Ryanodine...
Put these steps in neuromuscular junction synaptic transmission and excitation-contraction coupling in chronological order. A. Ryanodine receptors open B. Voltage-gated Na+ channels open in the muscle cell membrane near the neuromuscular junction C. Tropomyosin rotates into the groove of the thin filament (out of the way of the myosin binding site) D. Depolarization of motoneuron axon terminal E. Ca2+ dissociates from troponin F. [Ca2+] rises in the muscle cell cytoplasm G. An EPSP occurs in the muscle cell H. Myosin...
Consider the neuromuscular junction between a pre-synaptic neuron and the muscle around the eye. Which of...
Consider the neuromuscular junction between a pre-synaptic neuron and the muscle around the eye. Which of the following would be an effect of the Botox? A. More acetylcholine in the synapse of the neuromuscular junction B. Less acetylcholine in the synapse of the neuromuscular junction
Chapters 6-8: Muscle and Neuromuscular Junction 1 Myofibrils A Excitatory transmitter that excites muscle fiber membrane...
Chapters 6-8: Muscle and Neuromuscular Junction 1 Myofibrils A Excitatory transmitter that excites muscle fiber membrane 2 Titin B Required to cause smooth muscle relaxation 3 Actin filaments C Thousands grouped together to form the muscle fiber 4 Tropomyosin D Nerve fiber sympase at muscle fiber 5 Sarcomere E Block active sites on actin filaments to block myosin attraction Acetylcholine F activates myosin cross-bridges in smooth muscle 7 Neuromuscular junction G Muscle sections between Z discs that individually contract 8...
6. Draw the Neuromuscular junction and label the Following structures. Include the three substances that interfere...
6. Draw the Neuromuscular junction and label the Following structures. Include the three substances that interfere with normal muscle contraction (both toxic and therapeutic). ID synapse, neurotransmitter synaptic cleft, axon terminal, synaptic bulb, synaptic vesicles, motor end plate, acetylcholine receptors, Junctional folds, acetylcholinesterase. 7. Describe or draw each of the contractile proteins (actin/myosin) and regulator proteins (troponin & tropomyosin). Explain the set up and how each participate in muscle contraction. Name the protein that attaches the sarcomere to the sarcolemma...
Sequence of Events at the Neuromuscular Junction The site where a motor neuron excites a skeletal...
Sequence of Events at the Neuromuscular Junction The site where a motor neuron excites a skeletal muscle fiber is called the neuromuscular junction. This activity will test your understanding of the sequence of events that occur at the neuromuscular junction. Using the images for help, place in the correct order of occurrence from left to right the events that occur at the neuromuscular junction after the action potential reaches the axon terminal. Termination of Neural Transmission Which of the following...
2. Curare blocks acetylcholine receptors at the motor end plate. This would result in: (1) Inability...
2. Curare blocks acetylcholine receptors at the motor end plate. This would result in: (1) Inability of the muscle fiber to respond to nervous stimulation (2) Increased muscle stimulation (3) Increased actylcholinesterase production (4) Lack of calcium uptake by the muscle fiber 3. The structure that is analogous to the Zline of skeletal muscle is the __ of smooth muscle. The structure that is analogous to troponin of skeletal muscle is _ muscle is ___ of smooth muscle. 4. Draw...
please answer me in no more than 7 sentences. thanks Please describe how the following changes...
please answer me in no more than 7 sentences. thanks
Please describe how the following changes can lead to muscle paralysis: 1. SNARE proteins are cleaved by a protease. 2. In the ligand-gated sodium channel on the muscle cell, the flanking charges around the first transmembrane domain are reversed. Synaptic vesicle fusion is a type of regulated exocytosis muscle cell myelinated axon nerve axon terminals 10 um body of Schwann cell Synaptic vesicles fuse in response to a signal trans-SNARE...
Label the picture of a neuromuscular junction: Junctional fold, synaptic cleft, calcium channels, muscle fiber, acetylcholine (neurotransmitter), ligand- channels, motor neuron, synaptic vesicles, and arrival of nerve impulse (AP) Ca2+
Choc Muscle fiber nucleus Myofibrilot muscle fiber Figure 10.15. Details of the neuromuscular junction. Label the structures labeled with capital letters. The numbers 1-4 indicate the chain of events that occur at the neuromuscular junction. Put these events in chronological order by placing a l in the blank before the first event, etc. Refer back to Figure 10.15 for information. Acetylcholine diffuses across the synaptic cleft. Nerve impulse reaches the axon terminal. Synaptic vesicles release acetylcholine into the synaptic cleft....
Chapters 6-8: Muscle and Neuromuscular Junction 1 Myofibrils A Excitatory transmitter that excites muscle fiber membrane 2 Titin B Required to cause smooth muscle relaxation 3 Actin filaments C Thousands grouped together to form the muscle fiber 4 Tropomyosin D Nerve fiber sympase at muscle fiber 5 Sarcomere E Block active sites on actin filaments to block myosin attraction Acetylcholine F activates myosin cross-bridges in smooth muscle 7 Neuromuscular junction G Muscle sections between Z discs that individually contract 8...
6. Draw the Neuromuscular junction and label the Following structures. Include the three substances that interfere with normal muscle contraction (both toxic and therapeutic). ID synapse, neurotransmitter synaptic cleft, axon terminal, synaptic bulb, synaptic vesicles, motor end plate, acetylcholine receptors, Junctional folds, acetylcholinesterase. 7. Describe or draw each of the contractile proteins (actin/myosin) and regulator proteins (troponin & tropomyosin). Explain the set up and how each participate in muscle contraction. Name the protein that attaches the sarcomere to the sarcolemma...
Sequence of Events at the Neuromuscular Junction The site where a motor neuron excites a skeletal muscle fiber is called the neuromuscular junction. This activity will test your understanding of the sequence of events that occur at the neuromuscular junction. Using the images for help, place in the correct order of occurrence from left to right the events that occur at the neuromuscular junction after the action potential reaches the axon terminal. Termination of Neural Transmission Which of the following...
2. Curare blocks acetylcholine receptors at the motor end plate. This would result in: (1) Inability of the muscle fiber to respond to nervous stimulation (2) Increased muscle stimulation (3) Increased actylcholinesterase production (4) Lack of calcium uptake by the muscle fiber 3. The structure that is analogous to the Zline of skeletal muscle is the __ of smooth muscle. The structure that is analogous to troponin of skeletal muscle is _ muscle is ___ of smooth muscle. 4. Draw...
please answer me in no more than 7 sentences. thanks
Please describe how the following changes can lead to muscle paralysis: 1. SNARE proteins are cleaved by a protease. 2. In the ligand-gated sodium channel on the muscle cell, the flanking charges around the first transmembrane domain are reversed. Synaptic vesicle fusion is a type of regulated exocytosis muscle cell myelinated axon nerve axon terminals 10 um body of Schwann cell Synaptic vesicles fuse in response to a signal trans-SNARE...
Most questions answered within 3 hours.
-
Work of 1950 J is done by stirring a perfectly insulated beaker
containing 75 g of...
asked 13 minutes ago -
The neighborhood kids set up an outdoor lemonade stand in
Maryland in June. They find that...
asked 14 minutes ago -
9. A company has a beginning inventory of 4,000 units. The
company estimates it will sell...
asked 28 minutes ago -
A patient goes to the doctor's office with symptoms of a urinary
tract infection and provides...
asked 30 minutes ago -
When responding to the essay questions, be sure to cite any
material you obtained from a...
asked 30 minutes ago -
The energy of an electron in a 2.25-eV-deep potential well is
1.50 eV.At what distance into...
asked 32 minutes ago -
Q1:Which three evolutionary innovations are present in land
plants (but not all land plants) that allowed...
asked 35 minutes ago -
Lymphosarcoma is
extremely rare. Risk factors for the disease are largely unknown.
What kind of study...
asked 37 minutes ago -
The solubility of benzoic acid in water is:
0.29g/100mL at 20°C
6.8g/100mL at 100°C
a) What...
asked 38 minutes ago -
Which food law was passed in 1996 and changed how pesticide
residues on food were regulated...
asked 56 minutes ago -
companies either hire outside programmers to
write_____ software or use their own internal developers.
asked 56 minutes ago -
A magnetic dipole m(t) = m_0*cos(ωt) can be
described as current density j(r,t) = −cm(t) ×...
asked 55 minutes ago