Question

Any one please help me
a) explain the structure of a typical long bone
b) what are floating ribs
c) what is Atlas

Answer 1

Any of the lower ribs that are not directly attached to the breastbone is called floating rib
A collection of maps or charts is known as Atlas.Hope it will help u

Answer 2

hey mate here is ur answer

1. the major parts of a long bone are: epiphysis, epiphyseal plate, metaphysis, diaphysis, medullary cavity, articular cartilage, and periosteum.
Epiphysis—From the Greek, meaning “to grow upon,” this spongy bone tissue is spherical in shape and is located at both the distal and proximal end of a long bone.
Epiphyseal plate—This is a layer of hyaline cartilage between the epiphysis and metaphysis. It is the location where bones continue to grow after birth and is therefore often referred to as the epiphyseal growth plate.
Metaphysis—From the Greek meta, meaning “between,” this is the area of the bone between the epiphysis and diaphysis.
Diaphysis—From the Greek, meaning “to grow between,” the diaphysis is the long, cylindrical, hollow shaft of the bone.
Medullary cavity—From the Latin word meaning “marrow,” it is the area within the diaphysis and contains fatty (mostly adipose) yellow marrow in adults.
Articular cartilage—A thin layer of hyaline cartilage covering the epiphysis where the bone joins another bone. It helps to reduce friction during joint movement and allows the bones to glide past one another.
Periosteum—From the Greek peri, meaning “around,” and osteon, meaning “bone,” it is a white, tough, fibrous membrane that covers the outer surface of the bone whenever it is not covered by articular cartilage. It contains nerves, lymphatic vessels, and blood vessels that provide nutrients to the bone.


2. he term “floating rib” is used to refer to a specific anatomical structure and to a disorder which could better be termed a “slipped rib.” Both, as one might imagine from the name, involve the ribs, curved bones found in vertebrates. The ribs are attached to the spine and a structure called the sternum, creating the rib cage, a protective casing for vital organs such as the heart and lungs.


3. An atlas is a collection of various maps of the earth or a specific region of the earth, such as the U.S. or Europe. The maps in atlases show geographic features, the topography of an area's landscape and political boundaries. They also show climatic, social, religious and economic statistics of an area.
 
hope this helps
thnks.......