Cardiac muscles are considered smooth muscles.
False
Cardiac muscle with skeletal and smooth muscle are the three main types of muscles. Cardiac muscles are specialized form of muscles that contract repeatedly to provide circulation of blood throughout the body. Cardiac muscles are found only within the heart while smooth muscles can be found in the stomach and intestine.
It’s c
Because velocity; just like speed will be distance over time
However on this case it’s displacement over time
Anyway in case ur wondering ,
the only difference between distance and displacement is that displacement requires a direction
so
100m/4s
=25 m/s to the east since the direction is already mentioned in question
The two arteries that support the brain are the vertebrals and internal carotids. Hope this helps!
Can u plz mark me as brainliest?
1. The right side of the mammalian heart pumps blood to the LUNGS. Here it absorbs OXYGEN and is now called OXYGENATED blood.
The gas, CARBON DIOXIDE is removed from the blood in the lungs. The blood returns to the LEFT side of the heart and from here it is pumped to the BODY TISSUES where it gives up its OXYGEN and is now called DEOXYGENATED blood. It passes back to the LEFT side of the heart in VEINS
2. Single Circulation -> The blood only passes through the heart once
Double Circulation -> The blood passes through the heart twice
3. Made of myocardium (thick muscle), four-chambered separated by valves, cardiac muscle is oxygenated via cornary ateries + veins, transports blood carrying oxygen + nutrients to the body's tissues
