What Special Qualities Does The Connective Tissue Of The Dermis Have

Contents

What Special Qualities Does The Connective Tissue Of The Dermis Have?

Integumentary System
Question Answer
What special qualities does the connective tissue of the dermis have? It contains both elastic and collagenous fibers that give the dermis the qualities of elasticity and strength.
What part of the hair extends from the hair papilla to the body surface? Hair Root

What type of connective tissue makes up the dermis quizlet?

What types of tissues make up the dermis? The papillary layer is areolar connective tissue and the reticular layer is dense irregular connective tissue. Blood vessels smooth muscle tissue and nervous tissue are found in the dermis.

What is unique about the dermis?

The dermis is the layer of skin that lies beneath the epidermis and above the subcutaneous layer. It is the thickest layer of the skin and is made up of fibrous and elastic tissue. Thus it provides strength and flexibility to the skin.

What type of connective tissue does the dermis have?

dense irregular connective tissue

The dermis is mostly composed of dense irregular connective tissue that is divided to two layers: the papillary layer and reticular layer. Interwoven within these layers are numerous elastin and collagenous fibers produced by fibroblasts (Figure 5.6).

See also how does solar radiation reach earth

What is the function of the connective tissue in the dermis?

The structure of the dermis provides a connective tissue framework for strength flexibility and protection of the deeper anatomical structures.

What tissue type makes up the dermis and how does that connect to its function?

Explanation: Our skin has two principal layers : epidermis and dermis. The epidermis is composed of epithelial tissue and the dermis is connective tissue. The dermis supports the epidermis and binds it to the subcutaneous tissue (hypodermis) the loose connective tissue directly under the skin.

What characteristics can be used to differentiate bone and cartilage?

Difference between Bone and Cartilage
Bones Cartilage
Bones are the hard inelastic and a tough organ that forms part of the vertebral skeleton. Cartilage is a soft elastic and flexible connective tissue that protects the bone from rubbing against each other.

Which of the following are characteristics of the dermis?

The dermis contains nerve endings sweat glands and oil glands (sebaceous glands) hair follicles and blood vessels. The nerve endings sense pain touch pressure and temperature.

Does the dermis contain connective tissue?

The dermis has connective tissue blood vessels oil and sweat glands nerves hair follicles and other structures. It is made up of a thin upper layer called the papillary dermis and a thick lower layer called the reticular dermis. Anatomy of the skin showing the epidermis dermis and subcutaneous tissue.

What makes the dermis layer strong and elastic?

The elasticity of the dermis is attributed to a network of protein fibers including collagen (type I and III) and elastin which are surrounded in an amorphous glycosaminoglycan ground substance. The dermis also contains scattered fibroblasts macrophages mast cells and leukocytes.

What special qualities does the connective tissue of the dermis have and why?

Integumentary System
Question Answer
What special qualities does the connective tissue of the dermis have? It contains both elastic and collagenous fibers that give the dermis the qualities of elasticity and strength.
What part of the hair extends from the hair papilla to the body surface? Hair Root

What are the characteristics and components of the papillary layer?

The papillary layer is defined by rete ridges (i.e. papillae) which are finger-like structures extending into the epidermis and contains thin collagen fibres sensory nerve endings cytoplasms and a rich network of blood capillaries.

Which type of connective tissue is found in the papillary layer of the dermis and contains?

areolar connective tissue

The papillary layer is made of loose areolar connective tissue which means the collagen and elastin fibers of this layer form a loose mesh.

What are connective tissues?

Tissue that supports protects and gives structure to other tissues and organs in the body. … Connective tissue is made up of cells fibers and a gel-like substance. Types of connective tissue include bone cartilage fat blood and lymphatic tissue.

What are the three functions of the dermis?

The dermis is divided into a papillary region and a reticular region. The primary function of the dermis is to cushion the body from stress and strain and to also provide: elasticity to the skin a sense of touch and heat. The dermis contains hair roots sebaceous glands sweat glands nerves and blood vessels.

What is the most common connective tissue in the dermis?

collagen

The most common connective tissue is collagen.

See also What Is The Role Of The Sun?

Which cells of the dermis secrete connective tissue matrix?

Fibroblasts are responsible for secreting collagen and other elements of the extracellular matrix of connective tissue. In microscopic appearance fibroblasts lack obvious specialized features. And fibroblasts throughout the body all appear similar to one another wherever they occur in ordinary connective tissues.

Is bone connective tissue?

Bone is a specialized connective tissue consisting of cells fibers and ground substance. Unlike other connective tissues its extracellular components are mineralized giving it substantial strength and rigidity.

What is characteristic of cartilage connective tissue?

Cartilage is a flexible connective tissue that differs from bone in several ways it is avascular and its microarchitecture is less organized than bone. … The main cell types in cartilage are chondrocytes the ground substance is chondroitin sulfate and the fibrous sheath is called perichondrium.

Why is cartilage a connective tissue?

Cartilage is a form of connective tissue in which the ground substance is abundant and of a firmly gelated consistency that endows this tissue with unusual rigidity and resistance to compression. … The cartilaginous skeletal elements present in fetal life are subsequently replaced by bone.

What characteristics can be used to differentiate between bone and cartilage quizlet?

Cartilage allows diffusion through matrix and exchanges nutrients gases and metabolites by diffusion. Bone is calcified no diffusion. Cartilage – no calcium bone stores 99% of body’s calcium as well as other minerals. You just studied 51 terms!

What do dermal papillae do?

You should notice that the dermis extends up into the epidermis in structures called dermal papillae. These have two functions. First they help adhesion between the dermal and epidermal layers. Second in areas of thick skin like this they provide a large surface area to nourish the epidermal layer.

What makes the dermis of the skin much thicker than the epidermis?

Explanation: Because it contains blood vessels sebaceous glands(secrete oil) sweat glands hair follicles nerve endings smooth muscles(arrector pili muscle) and also other some other layers i.e papillary layer and reticular layer.

Which of the following are characteristics of the skin?

  • Protection – against UV infection and mechanical chemical or thermal insults.
  • Sensory – has nerve receptors for touch pressure temperature pain.
  • Barrier – against water loss and for thermoregulation.
  • Synthesis – of vitamin D and melanin.

Are tendons connective tissue?

A tendon is a fibrous connective tissue that attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball.

What is the composition of the papillary layer of the dermis?

The papillary layer is made of loose areolar connective tissue which means the collagen and elastin fibers of this layer form a loose mesh. This superficial layer of the dermis projects into the stratum basale of the epidermis to form finger-like dermal papillae (see Figure 1).

How does the dermis protect the body?

Protecting the rest of the body: The dermis contains phagocytes which are cells that consume potentially harmful toxins and impurities including bacteria. The dermis already protects the body but the phagocytes provide an additional layer of protection from anything harmful that has penetrated the epidermis.

Why dermis is called True skin?

The dermis is called true skin because the vital functions of the skin and the structures found in the skin are located in the dermis.

What protein fiber that is found in the dermis gives skin its flexibility and firmness?

elastin

161 Cards in this Set
Coiled structures attached to hair follicles found in the underarm and genital areas that secrete sweat Apocrine glands
What protein fiber is found in the dermis and gives skin its flexibility and firmness? elastin
What hormone stimulates cells to reproduce and heal? Epidermal growth factor (EGF)

See also what direction does the earth rotate

What is the main function of the papillary layer of the dermis?

The upper papillary layer contains a thin arrangement of collagen fibers. The papillary layer supplies nutrients to select layers of the epidermis and regulates temperature. Both of these functions are accomplished with a thin extensive vascular system that operates similarly to other vascular systems in the body.

What tissue makes up the lower layer of the dermis?

The dermis connects the epidermis to the hypodermis and provides strength and elasticity due to the presence of collagen and elastin fibers. It has only two layers: the papillary layer with papillae that extend into the epidermis and the lower reticular layer composed of loose connective tissue.

What connective tissue makes up the intervertebral discs?

Fibrocartilage

Fibrocartilage is the tough very strong tissue found predominantly in the intervertebral disks and at the insertions of ligaments and tendons it is similar to other fibrous tissues but contains cartilage ground substance and chondrocytes.

Why is the connective tissue important?

Connective tissues bind structures together form a framework and support for organs and the body as a whole store fat transport substances protect against disease and help repair tissue damage. They occur throughout the body.

How do connective tissues differ from other tissue?

However connective tissue differs from other types in that its cells are loosely rather than tightly packed within the ECM. Based on the cells present and the ECM structure we differ two types of connective tissue: Connective tissue proper further divided into loose and dense connective tissues.

Types Of Connective Tissue – What Is Connective Tissue – Functions Of Connective Tissue

Tissues Part 4 – Types of Connective Tissues: Crash Course A&P #5

Connective Tissue – Histology | Lecturio

HumBio101x: Dense connective tissue

Leave a Comment