Magnesium is the fourth most abundant mineral in the body and is essential to good health. magnesium is needed for more than 300 biochemical reactions in the body. it maintain normal muscle and nerve function, keep bones strong, keep one’s heart rhythm steady, and supports a healthy immune system. magnesium also regulate blood sugar levels, promotes normal blood pressure, and may play a role in energy metabolism and protein synthesis. doctors and scientists are trying to determine whether magnesium may play a role in preventing and managing disorders such as hypertension, cardiovascular disease, and diabetes. which is the main idea of this paragraph? a. the role of magnesium in human nutrition is being studied intensely. b. magnesium may be related to the body’s metabolism and other healthy functions. c. magnesium appears to contribute to hypertension, cardiovascular disease, and diabetes. d. magnesium and a healthy immune system are separate diseases.
The sternum, thoracic vertebrae, and ribs protect the heart and lungs.
The skeleton can be divided into the axial skeleton (the skull and the vertebral column), visceral skeleton (ribs and sternum) and the appendicular skeleton (extremities).
The function of the visceral skeleton is to support and protect the first portion of the digestive and cardio-breathing apparatus.
In mammals, the second part of the vertebral column (thoracic vertebrae), the ribs and the sternum delimitate a protective box for lungs and heart.
C) muscle; bone to bone
First let's add the missing piece of information
2. Electrolyte balance
A. Muscles exert force against bones -3. Movement
Muscles puts a force on bones during contraction to cause body movement and lifting of objects.
B. The body's mass is suspended from bones and rest upon bones -4. Support
This provides support.
C. The lungs are surrounded by the ribs -1. Protection
The lungs are protected by the rib cage (12 sets of ribs) connected to the spine and around the lungs for protection.
D. Calcium is released from bones to restore the calcium levels in body fluids -2. Electrolyte balance
The bones is rich in calcium. It is deposited at high blood levels and released at low blood levels as it is controlled by PTH, vitamin D, and calcitonin.
The primary functions of the skeletal system are locomotion, support of the body, and the protection of internal organs such as the brain, heart, and lungs. Bones are also responsible for the production of red blood cells, platelets, and most white blood cells.
The thickness and shape of a bone being dependent on stresses placed upon it
Wolff's law plays a fundamental role in the study of exercise physiology, which is a field of science characterized by the study of the acute and chronic effects of physical exercise on the structures and functions of the human body systems.
According to Wolff's law, the stress imposed on bones generates changes in their size, shape and density.
When a bone is mechanically stimulated transversely, there is an increase in osteoclastic activity(destruction of bone tissue) in the pressed area and an increase in osteoblastic(fibrous matrix production) activity in the contralateral area.
Yeah hannah is right the answer is c
cardiac muscle is the heart A
Hope this helps you.