Tissues - Multiple Choice/T&f

Explanation
Epithelial tissue is the correct answer because it is the type of tissue that lines and covers the body. Epithelial tissue is composed of tightly packed cells that form a protective barrier on the body's surfaces and organs. It is found in the skin, digestive tract, respiratory system, and other areas where protection and absorption are needed. Epithelial tissue also plays a role in secretion and sensory perception.

Explanation
Simple squamous epithelium is the correct answer because it is a type of tissue that is thin enough to allow diffusion. This type of epithelium consists of a single layer of flat, scale-like cells that are tightly packed together, allowing for easy diffusion of substances across its surface. Simple squamous epithelium is found in areas where rapid diffusion or filtration is necessary, such as the alveoli in the lungs, the lining of blood vessels, and the kidney tubules.

Explanation
The correct answer is transitional because transitional epithelium is a specialized type of epithelial tissue found in organs that need to stretch and accommodate changes in volume, such as the urinary bladder. This tissue has the ability to stretch and contract without tearing, allowing the bladder to expand and hold urine.

Explanation
The intercellular material surrounding connective tissue cells is referred to as the matrix. The matrix is composed of various substances such as fibers and ground substance, which provide structural support and serve as a medium for nutrient exchange between cells. It is responsible for the strength, elasticity, and flexibility of connective tissues.

Explanation
Adipose tissue is the correct answer because it is known for storing energy in the form of fat, acting as insulation to regulate body temperature, and providing cushioning and protection to organs. It is composed of adipocytes, which are specialized cells that store fat. Adipose tissue is found throughout the body, particularly under the skin, around internal organs, and in bone marrow.

Explanation
Cartilage is a type of connective tissue that lacks blood vessels, making it avascular. This avascularity causes cartilage to have a slow healing process compared to other tissues in the body.

Explanation
Chondroblasts are the cells responsible for the formation of cartilage. These cells produce the extracellular matrix of cartilage, which includes collagen and proteoglycans. Chondroblasts are found in growing cartilage and are responsible for its growth and maintenance. They differentiate from mesenchymal stem cells and play a crucial role in the development and repair of cartilage tissues.

Explanation
Blood is classified as a connective tissue because it is composed of cells suspended in a liquid matrix called plasma. Connective tissues are characterized by having cells scattered within an extracellular matrix, and blood fits this description. The cells in blood include red blood cells, white blood cells, and platelets, while the plasma provides a medium for transporting nutrients, hormones, and waste products throughout the body. Therefore, blood meets the criteria for a connective tissue due to its cellular and matrix composition, as well as its function in support and transportation.

Explanation
Contractility is a property of muscle tissue. Muscle tissue is composed of cells that are specialized for contraction, allowing them to generate force and movement. This property is not present in nervous, epithelial, or connective tissues. Muscle tissue is responsible for various movements in the body, including skeletal muscle contractions, smooth muscle contractions in organs, and cardiac muscle contractions in the heart.

Explanation
Conductivity is a property of nervous tissue. Nervous tissue is specialized for transmitting electrical signals, known as nerve impulses, throughout the body. This tissue is made up of neurons, which have the ability to generate and transmit electrical impulses. These impulses allow for communication between different parts of the body, including the brain, spinal cord, and peripheral nerves. Therefore, nervous tissue is responsible for conducting these electrical signals and enabling the coordination and functioning of the nervous system.

Explanation
Epithelial tissue is actually avascular, meaning it lacks blood vessels. This characteristic allows for quick healing and minimal blood loss when cuts occur. Therefore, the given statement that epithelial tissue is moderately vascular is incorrect.

Explanation
Connective tissue is indeed characterized by large amounts of intercellular matrix and few cells. The matrix is composed of fibers and ground substance, which provide support and structure to the tissue. The cells in connective tissue are sparsely distributed within the matrix and are responsible for producing and maintaining the matrix components. This arrangement allows connective tissue to have various functions, such as providing strength, elasticity, and cushioning to different parts of the body. Therefore, the statement is true.

Explanation
Osteoblasts are actually bone-building cells, not bone-destroying cells. The correct term for bone-destroying cells is osteoclasts.

Explanation
Hyaline cartilage is indeed the most prevalent type of cartilage. It is found in various parts of the body, such as the nose, trachea, and ends of long bones. It has a glassy appearance and is characterized by its smooth surface. Hyaline cartilage provides support and flexibility to the body, making it an essential component of the skeletal system. Other types of cartilage, such as elastic and fibrocartilage, are less common in comparison. Therefore, the statement "Hyaline cartilage is the most prevalent type of cartilage" is true.

Explanation
Adipose tissue is indeed a type of connective tissue. It is composed of adipocytes, which are specialized cells that store fat. This tissue serves as a protective cushion, insulation, and energy storage in the body. Adipose tissue is found throughout the body, particularly underneath the skin, around internal organs, and in bone marrow. It plays a crucial role in regulating energy balance and hormone production. Therefore, the statement "Adipose tissue is a type of connective tissue" is true.

Explanation
Osteoblasts are specialized cells responsible for the formation of new bone tissue. They play a crucial role in bone development, growth, and repair. These cells are responsible for the production and secretion of collagen and other proteins that make up the organic matrix of bone. Osteoblasts also regulate the mineralization process by depositing calcium and other minerals onto the organic matrix, ultimately leading to the formation of mature bone tissue. Therefore, it is correct to say that osteoblasts are specialized cells that build bone tissue.

Explanation
Skeletal muscle tissue is striated because it has a striped or banded appearance under a microscope, which is due to the arrangement of contractile proteins. It is also voluntary, meaning that it is under conscious control. This means that individuals can choose to contract or relax their skeletal muscles as desired. Therefore, the statement "Skeletal muscle tissue is striated and voluntary" is true.

Explanation
The basic characteristics of the nervous system include excitation and conduction. Excitation refers to the ability of the nervous system to respond to stimuli, while conduction refers to the transmission of signals throughout the body. These two characteristics are fundamental to the functioning of the nervous system, allowing it to detect and respond to changes in the environment and coordinate the body's actions accordingly. Therefore, the statement that the basic characteristics of the nervous system are excitation and conduction is true.

Explanation
Muscle tissue does not have a basement membrane. A basement membrane is a thin, specialized extracellular matrix that separates epithelial tissues from connective tissues. While muscle tissue is surrounded by connective tissue called endomysium, it does not have a distinct basement membrane like epithelial tissues do. Therefore, the statement is false.

Explanation
Blood is not epithelial tissue. Epithelial tissue is a type of tissue that covers the surfaces of organs and lines cavities. Blood, on the other hand, is a connective tissue that consists of cells suspended in a liquid matrix called plasma. It does not have the characteristics or functions of epithelial tissue. Therefore, the statement is false.