What is the most abundant chemical substance in the body?
What account is 60 80 of body weight?
What is the importance of the survival need: water? Accounts for 60-80% of body weight; is the single most abundant chemical substance in the body and provides the fluid base for body secretions and excretions.
What is the vertical section through the body?
First is the transverse plane, (also called the horizontal plane), which divides the body into top and bottom. In anatomical position, transverse planes are parallel to the ground. The second is the coronal plane, which is a vertical plane that divides the body into the front and back sections.
What is a vertical section through the body dividing it into left and right called quizlet?
The sagittal plane is a vertical plane that divides the body into right and left parts.
What is a vertical section through the body dividing it into left and right called Group of answer choices?
The sagittal plane divides the body or an organ vertically into right and left sides.
What two movements are carried out when you open and close your mouth?
Direction: During depression, the mandible moves directly downwards. During elevation, it moves directly upwards. You are performing these two movements when you open and close your mouth or during mastication.
Which type of joint is freely movable?
Why can our elbow not move backwards Class 6?
(c) Our elbow cannot move backwards because the elbow has a hinge joint that allows movement in only one direction.
Are skull bones movable?
The only bone in your skull that forms freely movable joints is your mandible, or jawbone.
Can skull bones move?
Cranial bone motion has been the most controversial phenomenon of the Primary Respiratory Mechanism (PRM), but there is ample evidence that the cranial bones do rhythmically move a small but de nite amount. Historically, cranial bone motion was considered an anatomic impossibility.
Why is the neck called cervical?
The word cervix is derived from the Latin root word “cervix” which means “neck.” For this reason, the word cervical pertains to many areas where tissues narrow to a neck-like passage, and not only in your neck.
What is neck bone called?
Overview. These are the seven bones of the neck, called the cervical vertebra. The top bone, seen on the right of this picture, is called the atlas, and is where the head attaches to the neck. The second bone is called the axis, upon which the head and atlas rotate.
Does the neck have muscles?
Neck muscles are bodies of tissue that produce motion in the neck when stimulated. The muscles of the neck run from the base of the skull to the upper back and work together to bend the head and assist in breathing.