connective tissue
The stomach and blood vessels are composed of smooth muscles.
The Epidermis is the outermost, Avascularized (lacks blood vessels), protective layer. Its composed of Keratinized Stratified Squamous Epithelial Cells.
Nipples are composed of dense connective tissue and smooth muscle. They also contain nerve endings, blood vessels, and milk ducts.
Smooth
The tissue in blood vessels is called elastic tissue as it have to control the pressure in blood and have to contract and relax to create a specific pressure so that every organ should receive blood.
Smooth muscle tissue causes vasoconstriction. This type of muscle tissue is found in the walls of blood vessels and is responsible for regulating blood flow by constricting and dilating the vessels.
Cartilage
The tunica media is composed primarily of smooth muscle tissue. It is located in the middle layer of blood vessels and plays a key role in regulating vessel diameter and blood flow.
Compact bone tissue is composed of Haversian systems, also known as osteons. These are cylindrical structures that consist of concentric layers of bone matrix surrounding a central canal called the Haversian canal, which contains blood vessels and nerves.
The percentage of the dermis composed of connective tissue varies, but it is generally around 70-80%. The dermis primarily consists of dense irregular connective tissue, which provides strength and elasticity to the skin. This tissue type is crucial for the structural integrity of the skin, supporting other components like blood vessels, hair follicles, and glands.
The connective tissue type found in the walls of large blood vessels and in ligaments supporting transitional epithelia is elastic connective tissue. This type of tissue is rich in elastin fibers, allowing it to provide flexibility and resilience, enabling blood vessels to stretch and recoil with blood flow. Additionally, it helps maintain the structural integrity of ligaments associated with transitional epithelium.
Connective tissues vary in their vascularity, meaning some types have blood vessels while others do not. For instance, dense connective tissues like tendons and ligaments have a limited blood supply, while loose connective tissues, such as areolar tissue, are more vascularized. Cartilage, another type of connective tissue, is avascular, relying on diffusion for nutrient supply. Therefore, the presence of blood vessels in connective tissue depends on the specific type of tissue.