BIOLOGY 226 Exam 1 Study Set
Questions 100% Well Answered.
Anatomists Vs. Physiologists - Answer deal with the structure of the body parts.
VS. deal with the functions of body parts
How does a biological structure's form determine its function? - Answer Form = functional
role will depend upon the manner in which the part is constructed.
EX. The human hand with its long, jointed fingers makes it possible for human beings to grasp
things
five requirements of organisms - Answer Water
Food
Oxygen
Heat
Pressure(Atmospheric pressure)
homeostasis - Answer refers to the stable internal environment of an organism.
In human beings, if the requirements listed above become unstable, the body will react in
certain ways to regain its stable internal environment.
EX:sweating to help decrease body temperature.
How are body temperature, blood pressure and blood glucose concentration controlled? -
Answer Homeostasis is maintained by self-regulating control mechanism that can receive
signals about changes away from the normal set points and cause reactions that return
conditions to normal.
In what ways do homeostatic mechanisms act by negative feedback? - Answer Homeostatic
mechanisms detect changes away from the normal state. This stimulates responses in the
opposite directions, which are called negative responses.
How does the human body illustrate the levels of anatomical organization? - Answer The basic
unit of structure and function in the human body is the microscopic cell. These cells organize
into layers that have common functions. These layers are called tissues. These tissues then
, Distinguish between the dorsal and ventral body cavities, and name the smaller cavities within
each. - Answer The dorsal cavity is located at the back of the organism. It can futher be
subdivided into two parts—the cranial cavity within the skull, which houses the brain; and the
spinal cavity, which contains the spinal cord and is surrounded by sections of the backbone
(vertebrae). The ventral cavity is the front part of the organism. It is subdivided into two parts—
a thoracic cavity, which houses the lungs and heart; and a abdominopelvic cavity, which houses
the stomach, liver, spleen, gallbladder, small and a large intestines, urinary bladder, and the
internal reproductive organs.
How does a parietal membrane differ from a visceral membrane? - Answer A parietal
membrane refers to a membrane that is attached to the wall and forms the lining of a cavity
whereas a visceral membrane refers to a membrane that is deeper toward the interior and
covers the internal organs contained within a cavity.
Integumentary system - Answer It protects underlying tissues, helps regulate body
temperature, houses a variety of sensory receptors, and synthesizes certain products.
Skeletal system - Answer It provides frameworks and protective shields for softer tissues;
serves as attachments for muscles when body parts move. It also has a role in blood cell
production and storage of inorganic salts.
Muscular system - Answer It provides the forces that cause body movements. They also
maintain posture and are the main source of body heat.
Nervous system - Answer It provides the ability to detect changes that occur inside and
outside the body. It interprets the sensory impulses and what to do in response to these
impulses. It also plays a role in muscle contraction and gland secretions.
Endocrine system - Answer It secretes hormones that alter metabolism of a target tissue.
Cardiovascular system - Answer It pumps blood throughout the body. The blood serves as a
fluid for transporting gases, nutrients, hormones, and wastes.
Lymphatic system - Answer It transports tissue fluid back to the bloodstream and carries
certain fatty substances away from the digestive organs. It also plays a role in immunity
Digestive system - Answer It receives various food molecules from the outside and converts
Questions 100% Well Answered.
Anatomists Vs. Physiologists - Answer deal with the structure of the body parts.
VS. deal with the functions of body parts
How does a biological structure's form determine its function? - Answer Form = functional
role will depend upon the manner in which the part is constructed.
EX. The human hand with its long, jointed fingers makes it possible for human beings to grasp
things
five requirements of organisms - Answer Water
Food
Oxygen
Heat
Pressure(Atmospheric pressure)
homeostasis - Answer refers to the stable internal environment of an organism.
In human beings, if the requirements listed above become unstable, the body will react in
certain ways to regain its stable internal environment.
EX:sweating to help decrease body temperature.
How are body temperature, blood pressure and blood glucose concentration controlled? -
Answer Homeostasis is maintained by self-regulating control mechanism that can receive
signals about changes away from the normal set points and cause reactions that return
conditions to normal.
In what ways do homeostatic mechanisms act by negative feedback? - Answer Homeostatic
mechanisms detect changes away from the normal state. This stimulates responses in the
opposite directions, which are called negative responses.
How does the human body illustrate the levels of anatomical organization? - Answer The basic
unit of structure and function in the human body is the microscopic cell. These cells organize
into layers that have common functions. These layers are called tissues. These tissues then
, Distinguish between the dorsal and ventral body cavities, and name the smaller cavities within
each. - Answer The dorsal cavity is located at the back of the organism. It can futher be
subdivided into two parts—the cranial cavity within the skull, which houses the brain; and the
spinal cavity, which contains the spinal cord and is surrounded by sections of the backbone
(vertebrae). The ventral cavity is the front part of the organism. It is subdivided into two parts—
a thoracic cavity, which houses the lungs and heart; and a abdominopelvic cavity, which houses
the stomach, liver, spleen, gallbladder, small and a large intestines, urinary bladder, and the
internal reproductive organs.
How does a parietal membrane differ from a visceral membrane? - Answer A parietal
membrane refers to a membrane that is attached to the wall and forms the lining of a cavity
whereas a visceral membrane refers to a membrane that is deeper toward the interior and
covers the internal organs contained within a cavity.
Integumentary system - Answer It protects underlying tissues, helps regulate body
temperature, houses a variety of sensory receptors, and synthesizes certain products.
Skeletal system - Answer It provides frameworks and protective shields for softer tissues;
serves as attachments for muscles when body parts move. It also has a role in blood cell
production and storage of inorganic salts.
Muscular system - Answer It provides the forces that cause body movements. They also
maintain posture and are the main source of body heat.
Nervous system - Answer It provides the ability to detect changes that occur inside and
outside the body. It interprets the sensory impulses and what to do in response to these
impulses. It also plays a role in muscle contraction and gland secretions.
Endocrine system - Answer It secretes hormones that alter metabolism of a target tissue.
Cardiovascular system - Answer It pumps blood throughout the body. The blood serves as a
fluid for transporting gases, nutrients, hormones, and wastes.
Lymphatic system - Answer It transports tissue fluid back to the bloodstream and carries
certain fatty substances away from the digestive organs. It also plays a role in immunity
Digestive system - Answer It receives various food molecules from the outside and converts
