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Photomicrograph Set 2.An excellent reference for this may be found on your Interactive Physiology: Cardiovascular System: Anatomy Review: Blood Vessel Structure and Function. It discusses the tissues found and their functions as well as how these tissues form the vessels. Image C A B Styles Paragraph Editing This image is from the dermis of the skin. Remember from Ch 1 that the integument has a number of important homeostatic functions. These blood vessels which are found in the dermis transport gases and nutrients, but they are also well adapted to This requires the ability of the arteries and arterioles to both withstand the high systolic blood pressure and to control the rate of blood flow through the tissues. They accomplish this by having thicker layers of elastic connective tissue and smooth muscle fibers. Letters A and B indicate () while F is a ( ). Examine the contents of letters A, B, and F carefully. They are all ). Examine the thin wall of vessel A. It has ) layers. The letter D arrows are pointing toward nuclei of L). The main tissue which comprises the dermis is ( ).The reddish-violet structures which make up the majority of the tissue are() .They were produced by cells that manufactured the monomers (building blocks) and enzymes that joined the monomers together (polymerization) outside of the cell. The cells are known as Their purple nuclei are visible scattered though the dermis 1 The tissue in this micrograph is from a healthy lung section. The arrow is within a longitudinal section of a respiratory bronchiole. The small circular openings visible throughout the section are called, and are lined with the tissue ( ) which rests upon the ( ). The arrows of #1 are pointing at (). The tissue which makes up the exterior wall of these structures is (). Go on to Photomicrograph Set 3.

Answer 1

Ans. The dermis is the middle layer of the skin, between epidermis and subcutaneous layer. This layer is richly supplied with blood vessels which carry out the function of exchange of gases and nutrients. Along with this they are also adapted to stress and strain. So, in case of first blank, we can write stress as the answer.

Letters A and B indicate capillaries while letter F indicates a vein​​​​​​. When we examine the thin wall of vessel A, it has capillary endothelial layers.

The letter D arrows arec pointing towards the nuclei of endothelial cells.

The main tissue which comprises the dermis is connective tissue.​​​​​​ The reddish violet structures that make up the majority of the tissues are collagens. The cells that make collagens are called fibroblasts. ​​​​​​

Ans. The small circular openings visible through out the section are alveoli and are lined with the tissue alveolar epithelium, resting upon the basement membrane.

The arrows of #1 are pointing at capillaries. The tissue which makes up the exterior wall of this structures is capillary endothelium.