Heart

it reduces sperm count

Blood is pumped back into the left atrium (the wrong direction) as well into the aorta (the right direction)

The ability to spell.

You may not be hydrated enough before your workout. Muscles will often feel funny or shaky if they are deprived of water during a workout.

diastole and systole

diastole and systole

The dorsal heart of a grasshopper functions as part of its open circulatory system, pumping hemolymph (a fluid analogous to blood) throughout the body. This heart is located along the top of the thorax and abdomen and helps circulate nutrients and remove waste products. Unlike closed circulatory systems, the hemolymph does not remain confined to blood vessels, allowing it to bathe the internal organs directly. The rhythmic contractions of the dorsal heart ensure that hemolymph flows effectively to support the grasshopper's metabolic needs.

Well since Soma is a muscle relaxer and your heart is a muscle I'm pretty sure it would relax it by slowing it down. So your heart rate would probably drop as well as your blood pressure.

skeletal muscle pump

repiratory pump

semilunar valves

left to right

Thermocol is basically clay. You will need to sculpt it like a human heart then you can heat it, so it doesn't lose its shape.

When a person's pulse is taken at the wrist, the number of times pressure or a beat can be felt within a certain period of time is measured. This beat is blood rushing through the arteries of the body/wrist. The blood which rushed through and caused the beat is the result of one beat of the heart.

I assume this question is from your b4 heartbeat biology assignment, because I searched for the same exact question myself. ;)

yes to a degree, but more likely it is a function of the lymphatic system.

Atria is the receiving chamber and it is located at the top while ventricles are the one responsible for pumping blood out of the heart either to oxygenate the blood or to deliver it into our systems and it is located at the bottom part of the heart

The right atrium is one of the four chambers of the heart, responsible for receiving deoxygenated blood from the body through the superior and inferior vena cavae. It then pumps this blood into the right ventricle, which sends it to the lungs for oxygenation. The right atrium plays a crucial role in maintaining proper blood circulation and ensuring that oxygen-poor blood is efficiently transported for re-oxygenation. Additionally, it contains the sinoatrial (SA) node, which regulates the heart's rhythm.

Taking in nutrients through the small intestine

There are four cerebral ventricles: the paired lateral ventricles, and the midline third and fourth ventricles. The two lateral ventricles, located within the cerebrum, are relatively large and C-shaped, roughly wrapping around the dorsal aspects of the basal ganglia. It is in the lateral ventricles of the embryo that the successive generation of neurons gives rise to the 6-layered structure of the neocortex, constructed from the inside out during development. Each lateral ventricle extends into the frontal, occipital and temporal lobes via the frontal (anterior), occipital (posterior), and temporal (inferior) horns, respectively. The "body" and "atrium" are situated between the anterior/anterior horn and posterior horns.

The lateral ventricles both communicate via the interventricular foramina with the third ventricle, found centrally within the diencephalon. The third ventricle communicates via the cerebral aqueduct, located within the midbrain, with the fourth ventricle, found within the hindbrain. The three foramina to the subarachnoid space are found here, permitting cerebrospinal fluid produced in the ventricles to surround the brainstem, cerebellum, and cerebral cortex. The fourth ventricle is also continuous with the central canal, allowing CSF to bathe the inside surface of the spinal cord as well.

The main mechanism in which music affects your heart rate

is determined by your emotional response to it.

Music that makes you feel angry, fearful, or excited

will increase your heart rate.

Music that calms and soothes or makes you contented

will decrease your heart rate.

Also, if you are dancing to music, your heart rate will typically increase.

The proper word for spitting is to expectorate.

Narrowing of the valve between the left atrium and left ventricle is mitral stenosis. Mitral refers to that particular valve, and stenosis is defined as abnormal narrowing.

Because one part beats to pump blood to the lungs and the other beats to pump blood to the rest of your body. They are really one heart with two sections.

The ventricles of the heart function to pump blood to the entire body.

Right ventricle: receives blood from the right atrium and pumps it to the pulmonary artery (to lungs).

Left ventricle: receives blood from left atrium and pumps to aorta (to rest of body).

Some describe the cockroach as having 13 hearts, others describe it as having a 13-chambered single heart. "A cockroach has a chain of hearts, in all totaling to 13. Some regard it as a single heart with 13 chambers. These are funnel-shaped chambers with a pair of tiny holes called ostia."

Well yes and no. In a healthy person with a healthy cardio work IE... EKG, Echocardio, and stress test the answer is no. If you have an unhealthy heart IE..heart disease, previous heart attack than they can be considered dangerous.

What most people dont know is that over 40% of the population of the world has pvc's whether they know it or not!!