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Venus williams perspiring on the tennis court

This is a photo of Venus Williams, the famous tennis player, executing a hard tennis swing.
The body has critically important mechanisms for balancing the intake and output of bodily fluids. An athlete must continuously replace the water and electrolytes lost in sweat. (credit: “Edwin Martinez1”/Wikimedia Commons)

Chapter objectives

After studying this chapter, you will be able to:

  • Identify the body’s main fluid compartments
  • Define plasma osmolality and identify two ways in which plasma osmolality is maintained
  • Identify the six ions most important to the function of the body
  • Define buffer and discuss the role of buffers in the body
  • Explain why bicarbonate must be conserved rather than reabsorbed in the kidney
  • Identify the normal range of blood pH and name the conditions where one has a blood pH that is either too high or too low

Homeostasis, or the maintenance of constant conditions in the body, is a fundamental property of all living things. In the human body, the substances that participate in chemical reactions must remain within narrows ranges of concentration. Too much or too little of a single substance can disrupt your bodily functions. Because metabolism relies on reactions that are all interconnected, any disruption might affect multiple organs or even organ systems. Water is the most ubiquitous substance in the chemical reactions of life. The interactions of various aqueous solutions—solutions in which water is the solvent—are continuously monitored and adjusted by a large suite of interconnected feedback systems in your body. Understanding the ways in which the body maintains these critical balances is key to understanding good health.

Questions & Answers

mention two processes of bone formation
Ngopiro Reply
what is the process for the bone formation
Ngopiro
what are the importance of studying anatomy and physiology?
Justine Reply
what are the importance of studying anatomy and physiology?
Justine Reply
bones and structures
Nkechi Reply
good morning
Cb
I wand anatomy notes 1st year
Cb
it's called going to class and taking notes
fyn sir
patrick
lmfao slay thank you for making my day lol
Bianca
heloo
King
I felt sleepy when I go for study immediately, how can I change
Abdi
what are the Hodgkin's disease
Mwasiti Reply
what are the components of cardiovascular system
Mwasiti Reply
Heart Blood Blood Vessel
Md
what are the components of the bone
Ngopiro
what is Hodgkin's disease
Mwasiti Reply
What is anatomy
Munira Reply
anatomy is a study of physical and structural functions of human body parts
Mohd
is the study of structure of the body and physical relationship involve between the body system
Mwasiti
is the study of structure of the body and physical relationship involve between the body system
Mwasiti
why simple columnar support peristalisis
Camilius Reply
why when sex of an individual is determined by y chromosome found in male therefore why there is many women than male
pamfili Reply
I'm not sure if I fully understand your question.
are you sure it is more
samir
i don't remember what I said.
I'm not sure if I fully understand your question.
roughly taking a lead.
samir
Muscle of mastication
JIMOH Reply
what is anatomy
Akanle
Sorry....it's the study of human body and it's functions.
Irene
Anatomy is the study of human organs
Kity
what is serum protein?
Salum
what is anatomy
Akanle
Anatomy is the study of human organs
Kity
Who is a bovin
Kity
Who is a bovin
Kity
Why do you ask tough questions I'm in JHS 3
Kity
pls does broken bones get healed
Desmond
yes
Belinda
how
Desmond
by surgery or medication
Desmond
Medication
Irene
why do a bovin not menstruate unlike women?
patrick
Why do you ask tough questions I'm in JHS 3
Kity
Anatomy is the study of structure of the human body
Belinda
yes
Belinda
medication
Belinda
yes
Belinda
animals within that group include cows as well as others.
ihope that was helpful
aaa,kity.bovin is a terminology used by veteranians to refer a cow.for dogs its carnine,cats it's ferline...etc
patrick
i believe if you look up the classification of Bovin , it tell clarify more for you.
ihope that was helpful
i don't think my first message about taxonomy sent
i don't think my first message about taxonomy sent
difference between seminiferous tubules and ejaculatory duct
Muhammad Reply
tell me the answer boss
Musibi
wats dis group
Kity
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Agemo Reply
what is azygous vein
Karan Reply
Sir muscle contraction ka topic kis part m milega
sonugora Reply

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Source:  OpenStax, Anatomy & Physiology. OpenStax CNX. Feb 04, 2016 Download for free at http://legacy.cnx.org/content/col11496/1.8
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