What are the longitudinal tubes of bone called?

In an osteon, bone cells are arranged in concentric circles around longitudinal tubes called: Haversian canals.

What cells are arranged in concentric circles?

The osteocytes are arranged in concentric rings of bone matrix called lamellae (little plates), and their processes run in interconnecting canaliculi. The central Haversian canal, and horizontal canals (perforating/Volkmann’s) canals contain blood vessels and nerves from the periosteum.

What muscle tissue can be consciously controlled quizlet?

skeletal muscle: voluntary, under conscious control.

Which of the following is not one of the four basic types of body tissues?

anatomy and physiology

Question Answer
Which of the following is not one of the four basic types of body tissues? Eye tissue
Which of the following characteristics is used to distinguish tissue types? Organization of cells
Histology is the study of tissues

What are the two basic types of bone tissue?

There are two types of bone tissue: compact and spongy. The names imply that the two types differ in density, or how tightly the tissue is packed together. There are three types of cells that contribute to bone homeostasis.

Do joints attach muscle to bone?

Tendons (another type of tough connective tissue) on each side of a joint attach to muscles that control movement of the joint. Tendons connect muscles to bones.

What cells are found in lacunae?

Between the rings of matrix, the bone cells (osteocytes) are located in spaces called lacunae.

Where can smooth muscle be found in the body?

Smooth muscle fibers are located in walls of hollow visceral organs, except the heart, appear spindle-shaped, and are also under involuntary control.

What does it mean that skeletal muscles are under conscious control?

Skeletal muscle, attached to bones, is responsible for skeletal movements. The peripheral portion of the central nervous system (CNS) controls the skeletal muscles. Thus, these muscles are under conscious, or voluntary, control. The basic unit is the muscle fiber with many nuclei.

What is the smallest unit in the body?

The cell is the smallest structural and functional unit of living organisms, which can exist on its own. Therefore, it is sometimes called the building block of life.