Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Breathing01:05

Breathing

64.6K
The process of breathing, inhaling and exhaling, involves the coordinated movement of the chest wall, the lungs, and the muscles that move them. Two muscle groups with important roles in breathing are the diaphragm, located directly below the lungs, and the intercostal muscles, which lie between the ribs. When the diaphragm contracts, it moves downward, increasing the volume of the thoracic cavity and creating more room for the lungs to expand. When the intercostal muscles contract, the ribs...
64.6K
Mechanism of Breathing I: Inspiration01:30

Mechanism of Breathing I: Inspiration

3.3K
Introduction to Inspiration: The Respiratory System in Action
The respiratory system, an essential network for breathing, comprises the conducting and respiratory zones, each playing a crucial role in the overall process of respiration. Let us explore the detailed mechanism of inspiration, or inhalation, which is the first phase of the respiratory cycle.
Pathway of Air during Inspiration
During inspiration, air enters our body through the nose or mouth and moves through the conducting zone,...
3.3K
Mechanism of Breathing II: Expiration01:23

Mechanism of Breathing II: Expiration

2.1K
The Physiology of Expiration: A Seamless Respiratory Process
Expiration, or exhaling, is a complex physiological process that begins as the inspiratory muscles begin to relax. This relaxation triggers a series of events that epitomize the efficiency of the respiratory system.
Mechanism of Expiration:
2.1K
Serum Laboratory Studies, Stool Test, Breath Test01:30

Serum Laboratory Studies, Stool Test, Breath Test

883
Gastrointestinal (GI) diagnostic studies are pivotal in confirming, ruling out, diagnosing, or staging various diseases, including cancers. Following diagnosis, allocating time for discussions with the patient and providing informational resources is crucial. Diagnostic assessments of the GI tract often occur in outpatient settings like endoscopy suites or GI labs. Preparation for these tests may include dietary restrictions, fasting, liquid bowel preparations, laxatives, enemas, and the...
883
Mechanism of Breathing III: The Accessory Muscles01:21

Mechanism of Breathing III: The Accessory Muscles

4.5K
The Role of Accessory Muscles in the Respiratory System
The respiratory system is a complex network that relies on primary respiratory muscles like the diaphragm, but also involves accessory muscles to enhance lung expansion and airflow during both inhalation and exhalation.
Enhancing Inhalation with Accessory Muscles:
Accessory muscles such as the sternocleidomastoid, scalene, intercostal, and abdominal muscles are crucial when additional respiratory effort is required, such as during deep...
4.5K
Skin Cancer01:30

Skin Cancer

5.9K
Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
5.9K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The thermodynamic opportunities hypothesis: Metabolic temperature insensitivity across flatfish species.

Science advances·2026
Same author

A Na pump with reduced stoichiometry is up-regulated by brine shrimp in extreme salinities.

Proceedings of the National Academy of Sciences of the United States of America·2023
Same author

Response to 'Coming up for air'.

The Journal of experimental biology·2021
Same author

Climate-driven aerobic habitat loss in the California Current System.

Science advances·2020
Same author

Oxygen supply capacity in animals evolves to meet maximum demand at the current oxygen partial pressure regardless of size or temperature.

The Journal of experimental biology·2020
Same author

Ocean deoxygenation and zooplankton: Very small oxygen differences matter.

Science advances·2018

Related Experiment Video

Updated: Feb 6, 2026

Colonization of Euprymna scolopes Squid by Vibrio fischeri
08:58

Colonization of Euprymna scolopes Squid by Vibrio fischeri

Published on: March 1, 2012

20.5K

Do squid breathe through their skin?

Matthew A Birk1, Agnieszka K Dymowska2, Brad A Seibel2

  • 1College of Marine Science, University of South Florida, Saint Petersburg, FL 33701, USA matthewabirk@gmail.com.

The Journal of Experimental Biology
|August 17, 2018
PubMed
Summary
This summary is machine-generated.

Squid primarily use gills for oxygen, not skin diffusion. This study found cutaneous respiration in squid is minimal, supplying only local skin needs, challenging previous assumptions.

Keywords:
AmmoniaCephalopodCutaneous respirationGas exchangeMetabolismOxygen

More Related Videos

Scanning SQUID Study of Vortex Manipulation by Local Contact
06:53

Scanning SQUID Study of Vortex Manipulation by Local Contact

Published on: February 1, 2017

7.3K
A Method for Extracting Pigments from Squid Doryteuthis pealeii
11:03

A Method for Extracting Pigments from Squid Doryteuthis pealeii

Published on: November 9, 2016

9.9K

Related Experiment Videos

Last Updated: Feb 6, 2026

Colonization of Euprymna scolopes Squid by Vibrio fischeri
08:58

Colonization of Euprymna scolopes Squid by Vibrio fischeri

Published on: March 1, 2012

20.5K
Scanning SQUID Study of Vortex Manipulation by Local Contact
06:53

Scanning SQUID Study of Vortex Manipulation by Local Contact

Published on: February 1, 2017

7.3K
A Method for Extracting Pigments from Squid Doryteuthis pealeii
11:03

A Method for Extracting Pigments from Squid Doryteuthis pealeii

Published on: November 9, 2016

9.9K

Area of Science:

  • Marine Biology
  • Animal Physiology
  • Respiratory Physiology

Background:

  • The hypothesis of cutaneous respiration in squid is widely accepted but lacks empirical validation.
  • Previous assumptions suggest squid obtain significant oxygen through skin diffusion alongside gill uptake.

Purpose of the Study:

  • To empirically investigate the extent of cutaneous respiration in two squid species.
  • To quantify oxygen consumption and ammonia excretion across the squid mantle surface.

Main Methods:

  • Utilized a divided chamber to isolate the mantle cavity and gills from the external skin surface.
  • Measured oxygen consumption and ammonia excretion rates in separate compartments for Doryteuthis pealeii and Lolliguncula brevis.

Main Results:

  • At rest, squid obtain only 12% of their total oxygen demand via cutaneous respiration, sufficient only for local skin tissue needs.
  • Ammonia excretion across the skin was found to be minimal.
  • The vast majority of oxygen uptake occurs through the branchial pathway.

Conclusions:

  • The study provides empirical evidence that cutaneous respiration plays a minor role in squid oxygen uptake.
  • Findings suggest that the traditional branchial pathway is the primary route for oxygen acquisition in squid.
  • Re-evaluation of indirect evidence supporting cutaneous respiration is warranted based on these results.