More than 30 trillion cells make up your body. The structure of the heart reflects its job of pumping blood throughout the body, while the structure of the lungs maximizes the efficiency with which they can take up oxygen and release carbon dioxide. These terms are sometimes used in describing the position of the body during specific physical examinations or surgical procedures. The. 1. The two largest human body cavities are the ventral body cavity, and the dorsal body cavity. Some examples of epithelial tissue include: Epithelial tissue is made up of epithelial cells. Body Cavities Flashcards | Quizlet False 2. Smooth muscle cells do not have striations, while skeletal muscle cells do. For example, is a scar above the wrist located on the forearm two or three inches away from the hand? Other organs include the gallbladder, the pancreas, and the. Body cavities and membranes : Anatomy & Physiology Superior or cranial - toward the head end of the body; upper (example, the hand is part of the superior extremity). Dorsal cavity: Bones of the cranial portion of the skull and vertebral column, toward the posterior (dorsal) side of the body, Spinal cavity: Contains the spinal cord, which is an extension of the brain, Ventral cavity: Anterior portion of the torso; divided by the diaphragm into the thoracic cavity and abdominopelvic cavity. Loose connective tissue, show below, is the most common type of connective tissue. For instance, digestive system organs cooperate to process food. Thoracic cavity. A body that is lying down is described as either prone or supine. Some more common conditions associated with epithelial tissue include: Since epithelial cells exist in several important parts of your body, several types of tests examine epithelial cells to check for certain medical conditions. Humansand other large multicellular animalsare made up of four basic tissue types: epithelial tissue, connective tissue, muscle tissue, and nervous tissue. These are the cavities created by serous membranesthe pleural cavities, the pericardial cavity, and the peritoneal cavityand the mediastinum. On the left, a diagram of the respiratory system showing nasal passages, trachea, and lungs. We recommend using a Both the parietal and visceral serosa secrete the thin, slippery serous fluid located within the serous cavities. The biosphere-- consisting of all life on earth. Loose connective tissue is composed of loosely woven collagen and elastic fibers. In each animal cavity, you will find the roof, floor, rostral wall, caudal wall, and lateral wall. Cranial cavitythe space occupied by the brain, enclosed by the skull bones. Abdominopelvic cavitythe abdominal cavity and the pelvic cavity in combination. The eleven organ systems are shown in Figure \(\PageIndex{2}\). The three planes most commonly used in anatomical and medical imaging are the sagittal, frontal (or coronal), and transverse plane. High-yield flow chart and table of the dorsal, ventral, cranial, spinal, thoracic, pleural, pericardial, abdominal, and pelvic cavities! Smooth muscle tissue layer allows to change the diameter of the arteries. Between the parietal and visceral layers is a very thin, fluid-filled serous space, or cavity (Figure 1.17). Specialized forms of connective tissue include adipose tissuebody fatbone, cartilage, and. The two main cavities are called the ventral and dorsal cavities. Epithelial cells are polarized, meaning that they have a top and a bottom side. Last reviewed by a Cleveland Clinic medical professional on 11/09/2021. Just like workers on an assembly line, the organs of an organ system must work together for the system to function as a whole. Each cell contains a nucleus and is surrounded by a plasma membrane. The lungs, heart, stomach, and intestines, for example, can expand and contract without distorting other tissues or disrupting the activity of nearby organs. Accessibility StatementFor more information contact us atinfo@libretexts.org. The pleural cavities flank the pericardial cavity.

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    Abdominopelvic cavity: An imaginary line running across the hipbones and dividing the body into the abdominal and pelvic cavities:

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