Answer:
White blood cells change their shape to reach a site of infection.
Explanation:
White blood cells (leukocytes) are part of the immune system and have are responsible for tracking and killing pathogens such as bacteria. An important way white blood cells eliminate pathogens is by 'eating' them (pahgocytosis).
White blood cells circulate in the blood stream, but are usually required at the site of infection inside tissues. For this to happen, the white blood cells have to migrate through the walls of small blood vessels and have to be able to find their way in tissues . This can only occur because the white blood cells are able to change shape .
Answer:
This mechanism, known as the skeletal muscle pump (Figure 6), helps the lower-pressure veins counteract the force of gravity, increasing pressure to move blood back to the heart.
Explanation:
The pathway between the ventral tegmental area (VTA) and the Nucleus Accumbens is critical for the addiction process because lesions to this pathway eliminate addiction. It is a part of the brain.
<h3>What is the nucleus accumbens?</h3>
The nucleus accumbens refers to a part of the forebrain located in the hypothalamus.
The nucleus accumbens is an interface between motivation (i.e., stimuli) and the corresponding action (response).
The nucleus accumbens is fundamental in different responses such as, for example, rewards, stressful situations, drug behavior, etc.
Learn more about the nucleus accumbens here:
brainly.com/question/4946361