38. Animal Form and Function

Animal Tissues

Animal Tissues - Class 9 Tutorial

Types of Tissue Part 1: Epithelial Tissue

7.6 - Reproduction: Upright posture and childbirth

Muscle and Epithelial Tissues

 No. Though the epithelial cells lining the intestines are secretory, they are columnar in shape rather than cuboidal. 

 No. The surface of the skin is a stratified squamous epithelium. 

 No. The respiratory tract is lined by pseudostratified columnar epithelium. 

 No. Gas exchange needs to occur across the surface of the blood vessels; thus, they are lined by flat squamous cells, not cuboidal cells. 

 Lining glandular tissue of the thyroid and salivary glands 

Remember the relationship between structure and function.

Where in the body would you be most likely to find secretory cells shaped like dice?

Types of Human Body Tissue

 No. Stratified squamous epithelium has this function. 

 Regeneration and regular replacement of cells 

 No. These functions are typical of stratified squamous epithelia. 

 No. Simple squamous epithelia are involved in exchange of materials by diffusion. 

 No. This is not a function of epithelial cells. 

Think of where columnar epithelia are found.

A columnar epithelial cell probably has what function?

Epithelial Tissue - What Is Epithelial Tissue - Functions Of Epithelial Tissue - Epithelial Cells

Tissues : Epithelial Tissue || Muscular Tissue

 No. Chondrocytes are cells that secrete collagen and chondroitin sulfate, which make up cartilage. 

 No. Neurons are cells of the nervous system. 

 No. Fibroblasts secrete the protein fibers that are present in some forms of connective tissue. 

Consider that "osteo-" means "bone."

Bone-forming cells are called __________.

 No. The presence of osteoblasts would indicate bone. 

 No. The presence of fibroblasts would indicate loose connective tissue. 

 No. Blood cells include erythrocytes and leukocytes. 

 No. Adipose tissues store fat in adipose cells. 

Chondrocytes are found in a type of connective tissue.

Microscopic analysis of an unknown tissue sample reveals the presence of chondrocytes, indicating that the sample was probably taken from __________.

Types of Tissue Part 2: Connective Tissue

 No. The integumentary system includes the skin, and the excretory system includes the kidneys and bladder. 

 No. These systems are largely involved in the body's defenses against disease and infectious agents. 

 No. The endocrine system contributes to coordination of the body's activities. The integumentary system covers the outside of the body, protecting it against infection and injury and performing many other functions. 

 No. The respiratory system helps to move gases in and out of the body and is not involved with food. However, the circulatory system does help to distribute gases and nutrients throughout the body. 

These two systems both include many tubes.

Food processing and the absorption and distribution of nutrients within your body are mainly accomplished by the __________ systems.

 Do salamanders and frogs have the same number of toes on their front feet? 

 Is it true that apes do not have fleshy tails like monkeys? 

 Are there any living birds with claws on the ends of their wings? 

 How is blood pressure affected by physical activity? 

Physiology relates to function.

Which of the following is a question about physiology?

What Are Trade Offs? | Stephen Stearns

ANIMAL TISSUES _  PART 01

 No. Epithelium is made of densely packed cells and is not striated. 

 No. Skin is not a tissue; it is made up of many tissues. 

The term striated refers to a pattern of bands.

"Striated" is a description that would apply to which kind of animal tissue?

Animation: Overview of Animal Tissues

Nervous Tissue Overview

The evolutionary trade-offs of predator and prey explained

Identifying Connective Tissue | Review and Practice

 No. Cartilage surrounds the ends of bones and supports the nose and ears. 

 No. Adipose tissue is a fatty tissue with little matrix. Ligaments have a dense matrix of collagen fibers. 

 No. Loose connective tissue is made of a loose weave of collagen fibers. Ligaments are made of a dense pack of collagen fibers. 

 No. However, ligaments do connect bones to other bones.  

Ligaments function like strong rope.

Ligaments are a type of __________.

Briefly explain how the structure of each of these tissues is well suited to its function: stratified squamous epithelium in the skin, neurons in the brain, simple squamous epithelium lining the lung, bone in the skull.

Tissues and Organs

Animation: Connective Tissue

 No. The lung is part of the respiratory system. 

 No. The heart is part of the circulatory system. 

 No. The integumentary system includes the skin and its derivatives. The excretory system includes the kidneys and bladder. 

 No. The excretory system includes the kidneys and bladder. The intestine is a component of the digestive system. 

Consider the functions of each system and the organs that it contains.

Which of the following systems is correctly paired with one of its parts?

Interview with Karen Rosenberg about the evolution of the human pelvis

For each of the following, explain how structure relates to function: absorptive sections of the digestive tract; capillaries; beaks of Galápagos finches; fish gills.

 Collagen, actin, and intercalated disks 

 No. None of these are components of neurons. 

 No. Although neurons do contain axons and dendrites, they do not have sarcomeres, which are units of muscle tissue. 

 No. Although neurons do have a cell body, they do not have collagen, which is found in connective tissue, or myosin, a contractile protein found in muscle cells. 

 None of the listed responses is correct. 

 No. One of the other choices is correct. 

Neurons are the cells of the nervous system that sense stimuli and transmit signals.

A neuron consists of many components. Name three.

Types Of Animal Tissues | Biology | Letstute

Basic Biology. Lesson 6: Cells Tissues and Organs (GCSE Science)

 No. This tissue has a matrix of dense, parallel collagen fibers without calcium. 

 No. This tissue has a dense matrix of collagen fibers embedded in a rubbery matrix. 

 No. Adipose tissue has relatively little matrix. 

 No. This tissue's matrix is a loose weave of protein fibers. 

Consider why you need calcium in your diet.

Which of the six major types of connective tissue has a rigid matrix that contains collagen and calcium salts?

Human embryonic stem cells are capable of forming all types of cells in the human body. How are these cells similar to meristem cells in plants?

 No. Blood is restricted to the blood vessels. 

 found only in the interior of compartments such as the heart and stomach 

 No. Interstitial fluids are found elsewhere. 

 fluid that is released from the body, such as tears and sweat 

 No. Interstitial fluid is found within body tissues. 

 No. Many body fluids are not interstitial fluids. 

 the fluid that fills the spaces between cells 

Consider that the prefix "inter-" means "between."

Interstitial fluid is __________.

Cells, Tissue, and Organs

The body tissue that consists largely of material located outside of cells is
a. epithelial tissue.
b. connective tissue.
c. muscle tissue.
d. nervous tissue.

Muscle Tissue

Animal Physiology and Fitness Trade-Offs

 No. These are cells of connective tissues. 

 No. These are cells of connective tissue. 

Many epithelial tissues cover or line surfaces of the body.

Which of the following are types of cell found in epithelial tissues?

Nervous Tissue | Types of Neurons | Biology | Science | Letstute

ANIMAL TISSUES PART 02

Calls vs. balls: An evolutionary trade-off

Ligaments are often found in joints, where the alignment of bones is very important.

Ligaments connect __________ to __________.

 No. The intestine is not a specific type of cell. In fact, it is made of many kinds of cell: muscle cells, secretory cells, epithelial cells, and so on. 

 No. The intestine is not a specific type of tissue. In fact, it contains several kinds of tissue: muscle, connective tissue, and so on. 

 No. The intestine not a specific type of organ system. In fact, it is one part of an organ system: the digestive system. 

 No. The intestine is not a specific type of organism. 

Consider the relationships between the different levels of biological organization.

Complete the following word association: Albatross is to organism as intestine is to __________.

 All cells in a multicellular organism can perform all metabolic functions, thus maximizing metabolism. 

 No. Whereas a unicellular organism must perform all metabolic functions within its single cell, multicellularity allows for cell specialization, which can lead to tissue, organ, and organ system formation. 

 Single-celled organisms can grow to larger sizes than multicellular organisms. 

 No. Unicellular organisms are limited in size because they must maintain an adequate surface area to volume ratio. 

 Single-celled organisms can form tissues. 

 No. Tissue formation is a benefit of multicellularity. 

 Single-celled organisms are simpler and thus less likely to experience breakdown or disease. 

 No. Though this may be true, the benefits of multicellularity generally far outweigh the costs. 

 Populations of cells in a multicellular body can be specialized for specific functions. 

Think about what a group of cells can do that a single cell cannot.

Which of the following is a benefit of multicellularity compared to organisms consisting of just one cell?

Animation: Nervous Tissue

Tissues, Part 1: Crash Course Anatomy & Physiology #2

Animation: Muscle Tissue

 No. Nervous tissue senses stimuli and transmits signals. 

 No. Occurring in sheets of tightly packed cells, epithelial tissue covers the outside of the body and lines organs and cavities within the body. 

 No. Muscle tissue actively contracts and causes body movements. 

 No. Skin is not a single tissue. Skin is composed of many tissues. 

The name of this tissue type suggests its functions.

Which of the following tissues bind and support other tissues in the body?

 No. Skin is composed of several types of tissue, including connective tissue. 

 No. Though red blood cells are found in blood, which is a type of connective tissue, neurons are cells of the nervous system. 

 No. Though cartilage and bone are types of connective tissue, epithelium is not a connective tissue. 

 Adipose tissue, dense and loose connective tissues, and neurons 

 No. Though adipose tissue, tendons, and ligaments are forms of connective tissue, neurons are cells of the nervous system. 

 Adipose tissue, cartilage, bone, and blood 

Consider which of these connect or bind one part of your body to another.

Which of the following is a list of connective tissues?

Types of Tissue Part 4: Nervous Tissue

 No. The extracellular matrix of bone is a mixture of organic fibers and inorganic minerals. 

 No. The rubbery extracellular matrix of cartilage contains large amounts of collagen and chondroitin sulfate. 

 No. The extracellular matrix of loose connective tissue contains loosely woven protein fibers. 

 No. The extracellular matrix of fibrous connective tissue contains closely packed collagen fibers. 

All connective tissues are made up of cells in an extensive extracellular matrix.

Plasma, a fluid containing water, salts, and dissolved proteins, is the extracellular matrix of __________.

Embryonic and Adult Tissues

 No. Fibroblasts are cells contained in some types of connective tissue. 

 No. Osteons are functional units found in bones. 

 No. Leukocytes are a type of blood cell. 

Consider the prefix that means "cartilage."

Cells that secrete the proteins that make cartilage strong yet flexible are called __________.

 components of the extracellular matrix of cartilage 

 No. Actin and myosin work together to achieve muscle contraction. The extracellular matrix of cartilage includes collagen fibers and chondroitin sulfate. 

 No. Actin and myosin are proteins found in muscle tissue but are not types of muscle tissue. 

 No. Intercalated disks are found in cardiac muscle tissue, where they are responsible for the mechanical and electrical connectivity between adjacent cardiac muscle cells. 

 No. They are found in all muscle tissue, not just cardiac muscle tissue. 

 proteins that play a major role in muscle contraction 

These are two molecules that act together.

Myosin and actin are __________.

Connective and Nervous Tissues

Tissues : Connective Tissue || Nervous Tissue

Animation: Epithelial Tissue

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