Smooth muscle, a type of tissue that allows for constriction or dilation, makes up the blood vessel walls. The absence of striations (stripes), which are present in both skeletal and cardiac muscles, gives smooth muscle its name.
Only smooth muscle cells are found in blood arteries. The tunica media houses these muscle cells, elastic fibres, and connective tissue. Even though vessels only have smooth muscles, skeletal muscle contractions are crucial for the venous system's ability to transport blood from the periphery to the heart.
The autonomic nervous system regulates the smooth muscle found in the walls of hollow internal organs like blood vessels, the gastrointestinal tract, the bladder, and the uterus. Since smooth muscle cannot be consciously controlled, it behaves spontaneously.
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Systolic pressure is the maximum pressure produced in the arms and legs when the left ventricle contracts.
Systolic pressure is the peak blood pressure experienced during ventricular contraction, and diastolic pressure is the lowest pressure felt right before the subsequent contraction. As in 120/80 mm Hg, the blood pressure is typically expressed as the sum of the systolic and diastolic pressures.
<h3>What time does the blood volume in the ventricle reach its peak?</h3>
End-diastolic pressure is at its resting level (end-diastolic pressure) and ventricular volumes are at their maximum value when the heart muscle is relaxed (end-diastolic volume).
<h3>How does the left ventricle generate the highest blood pressure?</h3>
Systolic blood pressure is generated when the left ventricle (LV) contracts, and it ranges from 100 to 140 millimeters of Hg (mm Hg). Aortic diastolic pressure typically ranges from 60 to 90 mm Hg. Blood flows through the aortic valve due to the gradient in pressure between the LV and aorta.
<h3>What is the ventricles' maximum pressure?</h3>
peak pressure of approximately 120 mmHg (systemic) or 25 mmHg (pulmonary circulation)
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Answer:
C) Eukaryotic and some prokaryotic cells
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- Organelles are the membrane bound small bodies that perform a specific function.
- organelles present on a cell are
- Mitochondria
- ER
- Ribosomes
- Lysosome
- Vacoule
- All eukaryotic cells and some prokaryotes have orgenelles
- Prokaryotic cell lack nuclear membrane and some orgenelles. It is primitive.
- Eukaryotic cell has nuclear membrane and all organelles.
Answer:
The most basic function of the cell cycle is to duplicate accurately the vast amount of DNA in the chromosomes and then segregate the copies precisely into two genetically identical daughter cells. These processes define the two major phases of the cell cycle.
Explanation:
Well one thing is that they're all viruses...