Homework Answers
Answer is A- dense bodies
( Dense bodies cause smooth muscle contraction as a unit. Dense bodies and intermediate filaments are networked through the sarcoplasm , which causes muscle fiber to contract.)
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- Smooth muscle cells can contract as a unit due to the presence of A-dense bodies...
Which of the following characteristics are shared by cardiac muscle cells and smooth muscle cells? a....
Which of the following characteristics are shared by cardiac muscle cells and smooth muscle cells? a. Cells that branch and produce force along multiple planes when they contract. b. Graded contraction (not all or none). c. No T-tubules. d. Both a and b are characteristics shared by these two types of muscle. e. Both b and c are characteristics shared by these two types of muscle.
Which is controlled by a somatic motor neuron? A) Endocrine gland B) Smooth muscle controlling bronchiole...
Which is controlled by a somatic motor neuron? A) Endocrine gland B) Smooth muscle controlling bronchiole diameter C) Muscle fibers that make up your bicep brachii muscle D) Smooth muscle controlling vessel diater E) Cardiac muscle cells (myocytes)
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...
No explanation just answer please. 36. Which connective tissue has a fluid matrix? A. adipose B....
No explanation just answer please.
36. Which connective tissue has a fluid matrix? A. adipose B. blood C. cartilage D. dense connective tissue E. loose connective tissue 37. What feature of cardiac muscle helps the cells coordinate their contraction as single unit? A. fused cells with multiple nuclei B. covalent bonds between actin and myosin molecules C. intercalated disks rich in gap junctions D. large numbers of motor neurons 38. A scientist is trying to coax stem cells to differentiate...
Question 21 2 pts While watching TV last night, the detectives referred to a victim as...
Question 21 2 pts While watching TV last night, the detectives referred to a victim as a stiff. The medical examiner corrected the detective and stated that the proper description is rigor mortis. How does this process occur in the human body? Tissues harden due to a lack of circulation. Blood coagulates in the body causing stiffness. Without ATP, muscles remain fixed in their last state of contraction. With a lack of nerve signals, the body tenses. 10:54 il LTE...
which is a true statement regarding smooth muscle cells a)They are multinucleated b)they have T-tubules c)...
which is a true statement regarding smooth muscle cells a)They are multinucleated b)they have T-tubules c) they involve calmodulin d)they involve troponin
smooth muscle- cells 14. You are working in a nursing home where there is an outbreak...
smooth muscle- cells 14. You are working in a nursing home where there is an outbreak of influenza. Which of the following is true? a. it is a highly contagious blood borne disease b. it is caused by organisms that normally reside in the upper respiratory tract c. it is spread via small particle aerosols d. type C virus is responsible for most human disease 15. Adults with a deficiency of growth hormone are at increased risk for: a. cardiovascular...
The neurotransmitter acetylcholine (ACh) causes the rapid contraction of skeletal muscle and the slower relaxation of...
The neurotransmitter acetylcholine (ACh) causes the rapid contraction of skeletal muscle and the slower relaxation of cardiac muscle. Which one of the following is the most likely explanation for this difference? A. ACh activates a GPCR pathway in cardiac muscle and an ion channel coupled receptor in skeletal muscle. B. ACh activates an ion channel coupled receptor in cardiac muscle and a GPCR pathway in cardiac muscle. C. ACh is permeable through the plasma membrane of skeletal muscle cells but...
2. Arrange the three common unit cells in order from least dense to most dense packing....
2. Arrange the three common unit cells in order from least dense to most dense packing. a. simple cubic < body-centered cubic < face-centered cubic b. simple cubic < face-centered cubic < body-centered cubic c. body-centered cubic < face-centered cubic < simple cubic d. body-centered cubic <simple cubic < face-centered cubic e. face-centered cubic < body-centered cubic < simple cubic 3. The normal boiling point of a liquid is a. 373 K. b. the temperature at which a liquid's vapor...
16. _______ stimulate uterine smooth muscle and can be used to induce parturition. A. Ergots...
16. _______ stimulate uterine smooth muscle and can be used to induce parturition. A. Ergots B. Corticosteroids C. Prostaglandins D. Pheromone
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...
No explanation just answer please.
36. Which connective tissue has a fluid matrix? A. adipose B. blood C. cartilage D. dense connective tissue E. loose connective tissue 37. What feature of cardiac muscle helps the cells coordinate their contraction as single unit? A. fused cells with multiple nuclei B. covalent bonds between actin and myosin molecules C. intercalated disks rich in gap junctions D. large numbers of motor neurons 38. A scientist is trying to coax stem cells to differentiate...
Question 21 2 pts While watching TV last night, the detectives referred to a victim as a stiff. The medical examiner corrected the detective and stated that the proper description is rigor mortis. How does this process occur in the human body? Tissues harden due to a lack of circulation. Blood coagulates in the body causing stiffness. Without ATP, muscles remain fixed in their last state of contraction. With a lack of nerve signals, the body tenses. 10:54 il LTE...
smooth muscle- cells 14. You are working in a nursing home where there is an outbreak of influenza. Which of the following is true? a. it is a highly contagious blood borne disease b. it is caused by organisms that normally reside in the upper respiratory tract c. it is spread via small particle aerosols d. type C virus is responsible for most human disease 15. Adults with a deficiency of growth hormone are at increased risk for: a. cardiovascular...
2. Arrange the three common unit cells in order from least dense to most dense packing. a. simple cubic < body-centered cubic < face-centered cubic b. simple cubic < face-centered cubic < body-centered cubic c. body-centered cubic < face-centered cubic < simple cubic d. body-centered cubic <simple cubic < face-centered cubic e. face-centered cubic < body-centered cubic < simple cubic 3. The normal boiling point of a liquid is a. 373 K. b. the temperature at which a liquid's vapor...
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