a. blood vessels that carry blood away from the heart b. most exchange of substances between blood and interstitial fluid occurs here c. tunic closest to the lumen of blood vessels, consisting of endothelium, a basement membrane, and a small amount of connective tissue. d. middle layer of blood vessel walls, consisting of smooth muscle cells and variable amounts of elastic and collage fibers e. outer layer of blood vessel walls, composed of connective tissue that varies from dense to loose, depending on the blood vessel. f. Blood vessels that carry blood toward the heart

Bone marrow is a soft, spongy, connective tissue found inside bones. Bone marrow contains stem cells, which can generate new blood cells and, therefore, can treat many diseases of the blood. In the past, extracting bone marrow from a donor required anesthesia and a long, large needle. The process often discouraged people from signing up to be donors. A process called apheresis has made the process much less painful and invasive. In apheresis, the donor's blood passes through a sterile line into the machine. Once the blood is inside the machine, the bone marrow stem cells are extracted, and the remaining blood is returned to the donor. Donors typically only experience minor discomfort from the needles used and the loss of electrolytes. Describe how you think this advance in biotechnology will affect individuals and society. Be sure to include any potential medical or ethical issues that could arise from this new practice.

explains how the three characteristics below affect the function of this cell, its system or / and the body as a whole. Make the connection between the structures and functions of the body. 1. Red blood cells that do not have a nucleus 2.The length and ramifications of neurons 3.the insulating layer of myelin around a neuron

Lean tissues are more than ____fluid by weight, compared to ______in fat tissue. A. 50%;5-10% B. 70%; 10-20%

PART B. TYPES OF CONNECTIVE TISSUES 7. BLOOD: Blood is considered a (highlight one: fluid, loose, dense, semisolid, or solid) connective tissue. Unlike other connective tissues, blood has a liquid ECM (extracellular matrix) called and hormones in the blood. which transports nutrients, waste, Draw blood connective tissue. Red blood cells. Plasma- Draw what you see. Label the cells and fibers (reticular fibers). Platelets In the plasma, you should see 3 types of cells or structures: Erythrocytes are known as red blood cells. They are the tiny pink dots all over the image. Red blood cells carry oxygen in the blood. They do not have nuclei. leukocytes are known as white blood cells. They are the larger, purple dots scattered throughout the image. White blood cells help with immune response and they DO have nuclei. __Platelets_are proteins (non- cellular components) that help with the blood clotting immune response. You may not be able to see them on the image (too low magnification and…

__________ is highly vascularized and responsible for most types of movement. a. connective b. epithelial c. nervous d. muscle e. cardiac

suppose a poison were able to block the gap junctions in the intercalated discs of cardiac muscle cells. how would this affect the ability of cardiac muscle tissue to perform its functions?

What type of tissue replenishes the body's supply of red blood cells?     A. extracellular matrix tissue B. ground substance C. adipose tissue D. hematopoietic tissue

Why does cholesterol increase the likeliness of blood clots?   A. Cholesterol widens the blood vessel causing blood pressure to rise. B. Cholesterol changes the composition of proteins in the blood. C. Cholesterol narrows the blood vessel thus slowing the rate of blood flow.  D. None of the above

The fiber type that gives connective tissue great tensile strength is _________ a.reticular  b.elastic c.muscle d.collagen