The long limb measurements of Turkana pastoralists indicate that the population is on the continuum of variation observed in Allen's rule In the days races were thought to be valid, static categories, Johann Friedrich Blumenbach categorized humans into the following races: Mongoloids, Malays, Ethiopians, American Indians, and Caucasoid
When did seafaring travelers observe differences between people from distant lands?
Who found that human races have no taxonomic significance?
Which two rules express the relationship between body shape and temperature?
When do bones remodel?
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What does Allen's rule indicate that humans and other mammals will have?
It is an ecogeographical rule formulated by Joel Asaph Allen in 1877 stating that animals that are adapted to colder climates tend to have shorter limbs and body appendages in comparison to animals that are adapted to more warm climates.
What happens when epiphyses fuse to the Diaphysis?
The epiphyseal plate is the growth zone between the diaphysis (shaft) of the long bone and the epiphysis (end) of the long bone. At skeletal maturity, growth ceases when the epiphyses fuse with the diaphyses, indicating that all the cartilage has been replaced with bone and epiphyseal closure has been achieved.
What does the postnatal stage include?
The postpartum (or postnatal) period begins within 6 weeks after childbirth as the mother's body, including hormone levels and uterus size, returns to a non-pregnant state. The terms puerperium, puerperal period, or immediate postpartum period are commonly used to refer to the first six weeks following childbirth.
How can homeostasis be studied indirectly?
Homeostasis may be studied indirectly by: observing living populations as they engage in various activities in various settings. The maintenance of homeostasis: is a key feature of most levels of any organism's biology.
Why is the end of a long bone called epiphysis?
The epiphysis (from Ancient Greek ἐπί (epí) 'on top of', and φύσις (phúsis) 'growth') is the rounded end of a long bone, at its joint with adjacent bone(s). Between the epiphysis and diaphysis (the long midsection of the long bone) lies the metaphysis, including the epiphyseal plate (growth plate).
When a bone forms from a fibrous membrane The process is called endochondral ossification?
The development of bone from fibrous membranes is called intramembranous ossification; development from hyaline cartilage is called endochondral ossification.
Can you drive 3 days after giving birth?
Wait a week to drive a car after a vaginal birth, says Robert Atlas, M.D., an OB-GYN at Mercy Medical Center in Baltimore. "You use your abs to move your foot from the gas to the brake." If you've had a C-section, expect to wait two to three weeks before getting behind the wheel.
What are the 5 stages of postnatal development?
The five life stages of postnatal development are: 1) neonatal, 2) infancy, 3) childhood, 4) adolescence, and 5) maturity. The neonatal period extends from birth to one month. Infancy begins at one month and continues to two years of age.
Can I get pregnant 6 months after giving birth?
It's best to wait at least 18 months (1½ years) between giving birth and getting pregnant again. Too little time between pregnancies increases your risk of premature birth. The shorter the time between pregnancies, the higher your risk. Premature babies are more likely to have health problems than babies born on time.
What is another term for homeostasis?
equilibrium, balance, evenness, stability, equanimity, equipoise.
What is the example of homeostasis?
Body temperature control in humans is one of the most familiar examples of homeostasis. Normal body temperature hovers around 37 °C (98.6 °F), but a number of factors can affect this value, including exposure to the elements, hormones, metabolic rate, and disease, leading to excessively high or low body temperatures.
What does homeostasis mean?
(HOH-mee-oh-STAY-sis) A state of balance among all the body systems needed for the body to survive and function correctly.
What is epiphyseal fusion?
In senescent growth plates, epiphyseal fusion was observed to be an abrupt event in which all remaining chondrocytes were rapidly replaced by bone elements. Fusion occurred when the rate of chondrocyte proliferation approached zero. Estrogen caused this proliferative exhaustion and fusion to occur earlier.
What is the function of the diaphysis of a long bone?
The diaphysis contains the medulla of the bone, which houses bone marrow. The marrow is the primary tissue responsible for the production of erythrocytes, leukocytes, and platelets. The epiphysis is the terminal end of the long bone that is typically responsible for articulation.
What are the distinguishing characteristics of an epiphysis and diaphysis of a long bone?
Epiphysis vs Diaphysis The epiphysis is the wider section at each end of the long bone which is filled with spongy bone. Diaphysis is the shaft of a long bone, which runs between the epiphysis. The epiphysis is round in shape. Diaphysis is long and cylindrical in shape.
What type of bone makes up the diaphysis?
cortical boneThe diaphysis is the main or midsection (shaft) of a long bone. It is made up of cortical bone and usually contains bone marrow and adipose tissue (fat).
Anthropology Chapter 5 review Flashcards | Quizlet
Study with Quizlet and memorize flashcards containing terms like C. Loring Brace argued that the race concept:, Franz Boas, Johann Friedrich Blumenbach and more.
Chapter 5 quiz Flashcards | Quizlet
Study with Quizlet and memorize flashcards containing terms like Wolff's law: a. states that after puberty there will be almost no further remodeling of bone when it is under stress. b. refers to the homeostatic balance leading to bone mass being produced where it is needed and removed where it is not needed. c. is the principle that the lengths of limb bones are related to environmental ...
Solved Relative to people with a history of living in | Chegg.com
Transcribed image text: Relative to people with a history of living in temperate climates, the Inuit and other cold-adapted populations Ojahave short limbs and large bodies b. consume more carbohydrates. c. have lower basal metabolic rates (BMRS), d. reduce peripheral body temperatures to maintain core temperatures. QUESTION 22 C. Loring Brace argued that the race concept O a. can be traced to ...
When did seafaring travelers observe differences between people from distant lands?
can be traced to the Renaissance , when seafaring travelers observed differences between people from distant lands.
Who found that human races have no taxonomic significance?
R.C. Lewontin found that human "races" have no taxonomic significance. He demonstrated this:
Which two rules express the relationship between body shape and temperature?
Allen's and Bergmann's rules express the relationship between body shape and temperature. Bergmann's rule states that heat-adapted species will have smaller bodies and cold-adapted species will have larger bodies. Allen's rule demonstrates that populations living in cold environments will have short limbs while those living in hot environments have long limbs. This long-term association between body shape and climate demonstrates that body shape is a genetic adaptation. Therefore, body shape and morphology reflect evolutionary and developmental processes.
When do bones remodel?
says that bones will remodel to become stronger when under stress, while mass is taken away and the bones become weaker when/where they are not used.
When did seafaring travelers observe differences between people from distant lands?
can be traced to the Renaissance, when seafaring travelers observed differences between people from distant lands
Do children with high altitudes develop larger chest cavities?
Children living at high altitudes develop larger chest cavities by adulthood than children living at lower altitudes. This is an example of
When did seafaring travelers observe differences between people from distant lands?
can be traced to the Renaissance , when seafaring travelers observed differences between people from distant lands.
Who found that human races have no taxonomic significance?
R.C. Lewontin found that human "races" have no taxonomic significance. he demonstrated this through:
Do children at high altitudes have a larger chest cavity?
Children living at high altitudes develop a larger chest cavity by adulthood than children at lower altitudes. This is an example of:
When did seafaring travelers observe differences between people from distant lands?
can be traced to the Renaissance , when seafaring travelers observed differences between people from distant lands.
Who found that human races have no taxonomic significance?
R.C. Lewontin found that human "races" have no taxonomic significance. He demonstrated this:
Which two rules express the relationship between body shape and temperature?
Allen's and Bergmann's rules express the relationship between body shape and temperature. Bergmann's rule states that heat-adapted species will have smaller bodies and cold-adapted species will have larger bodies. Allen's rule demonstrates that populations living in cold environments will have short limbs while those living in hot environments have long limbs. This long-term association between body shape and climate demonstrates that body shape is a genetic adaptation. Therefore, body shape and morphology reflect evolutionary and developmental processes.
When do bones remodel?
says that bones will remodel to become stronger when under stress, while mass is taken away and the bones become weaker when/where they are not used.