Search results
Human body - Anatomy, Physiology, Development: In general structure, the human body follows a plan that can be described as a cylinder enclosing two tubes and a rod. This body plan is most clearly evident in the embryo; by birth, the plan is apparent only in the trunk region—i.e., in the thorax and abdomen. The body wall forms the cylinder. The two tubes are the ventrally located alimentary ...
The human body is an incredibly complex structure, with cells, tissues, and organs assembled into highly organized systems that work together to perform an astonishing array of functions—from seeing and hearing to breathing and digesting food to running, playing a musical instrument, and
A diagram shows the levels of organization in the human body with arrows between each level. The first level shows a liver cell. The second level shows liver tissue, which is made up of multiple liver cells. The third level shows the liver, which is an organ. The last level shows that the liver is part of an organ system in the human body.
The biology of the human body includes. Physiology (how the body functions) Anatomy (how the body is structured) Anatomy is organized by levels, from the smallest components of cells to tissues and organs and to organ systems. Gross anatomy is the study of the body's organs as seen with the naked eye during visual inspection and when the body ...
May 16, 2024 · Human skeleton, the internal skeleton that serves as a framework for the body. This framework consists of many individual bones and cartilages. There also are bands of fibrous connective tissue—the ligaments and the tendons—in intimate relationship with the parts of the skeleton.
The human body is a single structure but it is made up of billions of smaller structures of four major kinds: Cells. Cells have long been recognized as the simplest units of living matter that can maintain life and reproduce themselves. The human body, which is made up of numerous cells, begins as a single, newly fertilized cell. Tissues
